Wednesday, May 28, 2008

Essential fats

If you have been doggedly avoiding fat in an attempt to lose weight — this approach is WRONG. You need fats in your diet. Your brain consists mostly of fat, and your intelligence, heartbeat and muscular movements all depend on it. The only way in which your body can send electrical messages through living tissue is via your nerve cells and their connectors, which again are made of fat.

The fact is that some fats (known as lipids) are essential. They act as the second energy reserve behind glycogen, providing most of their energy at around 70 per cent of maximum heart rate. Endurance athletes utilize fat as an energy source more than other sports people and this is why they tend to be lean.

Fats are not just for energy, though. Their many other functions include insulating important organs, carrying fat-soluble vitamins and regulating hormone levels. If you're a female athlete and you experience a loss of your periods, this may be due to extremely low body fat, for this plays a vital role in the activation of the female hormone oestrogen.

Fats also contribute to health in many other ways — provided they are of the right kind. In an attempt to warn people about the risk of consuming toomuch fat, certain groups have created the impression that all fats are bad, but this simply is not true.

Diet Start

Are you eating the wrong fats?

Many people in the Western world are getting 45 per cent of their calorific intake from fats, but these are junk fats that the body cannot use, so these people are just as fat-deficient as those on extremely low-fat regimes.

THERE ARE TWO MAIN TYPES OF NATURAL FATS:

1. Saturated fats come primarily from animal sources such as meat and dairy products, and from coconut and palm-kernel oil; they are solid at room temperature. They provide the body with a stored form of energy in fat cells.

2. Unsaturated fats are found in vegetables, nuts, grains and seeds, and in fish and game; they are liquid at room temperature. They contain two fatty acids that are essential to life and, more importantly, that the body cannot produce itself. These are linoleic acid (omega-6) and linolenic acid (omega-3) From these two 'essential fatty acids' your body can make all the other fatty acids it needs.

Is it just a case of cutting out saturated fat?

Saturated fat gets a bad press, and a diet too heavy in it has been closely linked to cardiovascular disease. However, there is another fat with an equal capacity to harm: hydrogenated fat.

Hydrogenated fat is solid or semi-solid at room temperature (the best example being margarine). It is created when a liquid oil (such as corn oil) has hydrogen added to it, changing its chemical structure. This in turn can interfere with the metabolism of some essential fatty acids. Research has shown that the trans fats in hydrogenated fats can increase LDL (poor) cholesterol,decrease HDL (good) cholesterol and thus raise the risk of coronary heart disease. Hydrogenated fat is found in almost all processed foods, plus frozen convenience foods and deep-fried fast food. This is another good reason to say goodbye to junk food and hello to fresh produce.

If you usually ingest high amounts of processed fats and use commercially altered oils for cooking, then you are certainly not getting the balance of fats that your body needs.

Why don't food manufacturers use healthier oils?

Even though the food industry uses vegetable oils that contain a reasonable amount of omega-6 fatty acids, they avoid omega-3s because these are more susceptible to oxidization — in other words, they go rancid quickly and don't have a long shelf life.

Ironic, isn't it? Food manufacturers quite happily promote food under the guise of lowering cholesterol and reducing heart disease, but they are ignoring one of the fats essential to health. So unless you are eating high amounts of fish, fish oils, leafy vegetables, nuts, unrefined olive oil, tofu or flaxseed oil, your ratio of omega-6 to omega-3 fats is probably screwed up, and this in turn will be screwing up your health.

The current Western diet is much higher in omega-6 fatty acids than omega-3's. Remember those healthy Palaeolithic people we were discussing earlier? They were eating equal amounts of both.

How is this relevant to body weight?

If you are eating a diet with a good balance of omega-6 and omega-3 fatty acids, this will affect your body in beneficial fat-burning ways:

  • Your metabolic rate will be increased, as will the metabolism of fats, so more stored fat will be burned for energy
  • Your cells' sensitivity to insulin will be increased, so that it regulates blood- sugar levels more effectively
  • The ratio of insulin to glucagons will improve, which will unlock the fat- storage banks and again allow fat to be burned as energy
  • Natural appetite suppressants will kick in.

So if you want to improve your chances of losing weight, you need to up your intake of omega-3 and other healthy fats.

Essential fats Q&A

Q. How often should I eat oily fish per week if I want to consume enough omega-3 fatty acids?

A. You should aim to eat oily fish a minimum of 2-3 times per week, or ensure you use flaxseed oil regularly on salads to raise your levels. Try to eat fish from as safe a source as possible as many coldwater fish are contaminated with heavy metals and pesticides.

Q. How can I avoid hydrogenated fat?

A. Cut out processed food and only use cold-pressed un-refined oils such as olive oil, or coconut oil for cooking. Don't eat fast food that has been deep-fried and avoid butter type spreads. If you did this, then you should be able to avoid consuming dangerous trans fatty acids.

The carbohydrate jewels

By upping your intake of low GI fruit and vegetables, you will not only be on your way to becoming leaner, but you will have a profound effect on your health. The amazing phytonutrients (plant nutrients) that you find in brightly coloured raw organic fruit and vegetables are clever little substances that can protect you from ill health in various ways, although many people's diets are sadly lacking in them.

Phytonutrients can help regulate the immune system, stabilize vitamins in body tissues and protect from serious illnesses, such as such as cancer. They do this by working as antioxidants alongside vitamins A, C, E and D, and the minerals, selenium and zinc. As a team, these powerful compounds have the ability to slow down the damaging oxidative process caused by those 'enemies of a healthy state', the free radicals. Antioxidants can also rid the body of these free radicals, which are the natural waste products of metabolism, which, if left unchecked, can lead to degenerative disease, by causing imbalances on a cellular level.

Diet Start

Take note that these free radicals are also found in overheated oils and fried foods, another good reason to kiss junk food good bye.

They aren't classed as essential nutrients, but without phytonutrients your sense of wellness would be severely compromised.

They work in the body at deep physiological and biochemical levels, and luckily enough are to be found in low-density/low GI fruit and vegetables. Eating these raw wherever possible is the key to maximizing their life- enhancing qualities. Cooking destroys many of the benefits that you will reap if you include a colourful array of energy-boosting raw fruit and vegetables in your daily diet.

Life is a balancing act

So now you have a better understanding of the impact that the wrong carbohydrates can have on your body, and have established that you need to incorporate more of the colourful and low GI fibrous fruit and vegetables in your diet. But man cannot live by carbohydrates alone. You will have to take a close look at the two other macronutrients that work hand-in-hand with carbohydrates to provide energy and nourish the body: protein and fats.

The key to balancing blood-sugar levels, banishing insulin resistance and losing excess weight lies in successfully balancing these three macronutrients.

Tuesday, May 27, 2008

Becoming a GI Joe

All carbohydrates have a value on what is known as the `glycaemic index' (GI), which indicates how quickly that carbohydrate is metabolized by the body and converted into glucose. The lower a food's GI, the longer it takes to be converted. Foods with the highest GIs are the ones that will have the most profound and immediate effect on your blood-sugar levels. All the carbohydrates on a weight- loss and insulin-balancing regime should come from the lower ranges.

There are two indexes: the glucose standard, which rates glucose as having a GI of 100 and the white bread standard, which is based on white bread being equal to 100. Other carbohydrates are assigned comparative ratios based on these figures. It doesn't really matter which index you adhere to, for they both give a pretty good - and sometimes surprising - insight into the speed with which certain carbohydrates are assimilated into the bloodstream.

Diet Start

Below are a few GI values of common foods, based on the glucose standard. Of course you are not expected to remember each specific food's value, so to make things easier, opposite are two simple tables showing you how to classify fruit and vegetables into those with a low GI value (under 20), those with a medium value (20-60) and those with a high value (over 60).

Density values

Each carbohydrate can also be evaluated by its density value. This is the amount of usable carbohydrate in relation to fibre and water content - the more fibre and water a vegetable or fruit contains, the less usable carbohydrates it will have. The most dense carbohydrate foods are pulses, wholegrains and starchy vegetables, particularly when they are cooked and their fibre is broken down, these will raise your insulin levels, so always be aware of this. The table opposite contains a list of low-density carbohydrates that should form the basis of your carb intake on a low-carb diet.

Not only do many fruits feature highly on the GI scale, but a few should also carry a carbohydrate density warning sign. Bananas, dried fruit and concentrated fruit juices are all a bad idea if you are trying to balance your blood sugar levels. It is best to avoid these totally until your blood sugar and weight have normalized, and then carefully re-introduce them into your diet.

Focus on fibrous vegetables that can be eaten raw or steamed - the type that lose a lot of water whilst cooking. This will mean increasing your intake of leafy green vegetables, such as Swiss chard, green cabbage, kale, bok choy, rocket, spinach and endive.

High-quality protein continue...

Soya's starring role

Soya is another star player on the protein front, and although it doesn't have as high a BV as whey protein, meat, fish or eggs, it has a multitude of health benefits which more than justify its inclusion in a low-carb diet; and it is a great vegetarian option.

Soya contains all-important isoflavones, which can reduce insulin levels, decrease arteriosclerosis (thickening of the arterial walls) and lower levels of LDL (Low-Density Lipoproteins, or poor cholesterol). It has also been shown to reduce the risk of osteoporosis (softening of the bones), increase bone mass and enhance the body's ability to retain calcium.

Diet Start

Soya is also of particular benefit to women, as the isoflavones it contains mimic the action of the female sex hormone oestrogen. It is believed that a diet high in soya can reduce the density of breast tissue, therefore lowering the risk of developing breast cancer.

Make it organic

The quality of the meat and fish we consume has dropped dramatically during the last century. Gone are the days when we were eating meat that came from animals allowed to graze freely on nutritious grass, and fish caught inunpolluted rivers and seas. Today, most farm animals are fed on grains that are high in carbohydrates and omega-6 fatty acids, then pumped full of antibiotics and hormones. And fish are being farmed in restrictive conditions, rendering them more fatty than their wild counterparts.

The only real answer is to buy the best that you can afford - the organic option being the healthiest and most nutritious. Organic is better because the quality of the food is better. It isn't loaded with drugs and hormones, isallowed to graze naturally, and quite often comes from wild sources, so that the level of omega-3's is higher, levels of saturated fats lower.

Protein Q&A

Q. Where does whey come from?

A, Whey comes from milk. During the process of turning milk into cheese, the whey protein is separated from the curds.

Q. Why use whey?

A. It contains the perfect combination of amino acids, in just the right concentrations for optimal performance in the body. Both hormonal and cellular responses seem to be greatly enhanced by whey supplementation. If you are trying to increase muscle mass, whey protein is invaluable in building and retaining muscle tissue.

Q. How do I know how much protein I need?

A. Easy-just follow these simple calculations. If you are sedentary you need 0.8g protein per kilogram of bodyweight (0.36g per pound of bodyweight). If you are active, you need 1.4g protein per kilogram of bodyweight (0.64g per pound of bodyweight). So a woman weighing 63kg (1401b) who exercises needs 88.2g of protein per day. A woman weighing 63kg (140Ib) who isn't active would be fine on 50.4g of protein per day.

Q. Can I have all my protein in one meal?

A. No, it is best to spread it out over the day, so divide it between your three meals and two snacks. You can do this by having eggs at breakfast, a portion of nuts for your morning snack, some fish at lunchtime, a whey protein shake as an afternoon snack, and finally by including a piece of lean meat in your evening meal.

High-quality protein

Our bodies are composed mainly of protein, which (after water) is the most abundant substance in the body. It is the major constituent of our muscles, tissues, skin, hormones, enzymes, antibodies and blood. Even after childhood protein plays a vital role in maintaining and rebuilding our bodies as they cope with the wear and tear of daily life.

Proteins are broken down by the process of digestion into units called amino acids, and the body requires 22 amino acids to form human protein. All but nine can be produced in the body. These nine are known as 'essential amino acids' and have to be provided in the diet. Foods that contain all nine are termed 'complete proteins', and they include meat, fish, dairy and soya protein. Fruit, vegetables, grains and pulses are 'incomplete proteins' and have to be carefully combined to provide sufficient amino acids in the diet.

Diet Start

Protein is fundamental to rebalancing blood-sugar levels, because it encourages production of the hormone glucagon, which helps the body to release stored glycogen for energy and encourages the burning of fat. Glucagon also helps to balance excess insulin production.

What is Biological Value?

In order to be efficient, protein foods have to be of a high quality and have what is termed a high Biological Value (BV) — this indicates how much of theprotein is retained by the body. Eggs used to be classed as having the highest BY, but micro-filtered whey, whey-peptide blends and lactalbumin (whey- protein concentrate) are even higher. Micro-filtered whey protein used to be a useless by-product of cheese manufacturing. Now it is processed at very lowtemperatures and turned into a protein source with a very high BV that contains all essential and non-essential amino acids.

The only whey to go

To maintain a healthy immune system, blood, skin and muscles, you need to consume protein with a high By. Whey protein (which is derived from milk, see Q&A opposite) is an excellent supplement that has long been used by bodybuilders and athletes alike. It has many uses in a dietary regime:

¨ It encourages the formation of lean muscle mass

¨ It increases glutathione levels, which has great antioxidant and immune- boosting properties

¨ It helps to build healthy new collagen

¨ It provides an invaluable source of protein for vegetarians who are attempting to balance their diets

¨ It is a quick and easy way of having a high-protein meal or snack

¨ It can be incorporated into recipes as a replacement for carbohydrate ingredients.

There are a multitude of whey products on the market — some better than others. Many come in sweet flavours, which are great when making shakes and smoothies, but you need to source natural, unflavoured products if you want to incorporate whey-protein powder into savoury dishes such as soups. These are widely available through health-food stores and on the Web. Just make sure you don't confuse them with slimmer's meal-replacement powders, which are usually laden with carbohydrates.

The average serving of whey protein is a 25g (1 oz) scoop, but check on the label to see how much of that scoop comprises protein: the lower the protein content, the higher the carbohydrate content. And beware of `blends': these are likely to be bulked up with milk and soya derivatives. To get the best out of your whey products, go for the highest protein concentration possible.

Monday, May 26, 2008

The link between carbohydrates and insulin resistance

The hormone insulin plays a major role in the metabolism of carbohydratesand their conversion to energy in the body. When you eat carbohydrates, they are converted into glucose in the bloodstream, which triggers the release of insulin. This virtually escorts the glucose to the body's cells, where it can be used as energy. If there is too much glucose, the insulin turns it into glycogen, which is stored in your muscles and liver ready to be converted back toglucose when it is needed.

However, in the high-refined 'carob' world in which we live, we often have too much glucose floating around in the bloodstream, and then insulin converts it to fat. And our body cells may become so flooded with insulin that they cease to be responsive to it, so the pancreas keeps producing more and more insulin in an attempt to get energy to your cells. This is known as 'insulin resistance'.

Diet Start

Over a period of time, less and less glucose gets used as energy, and more and more gets laid down as fat. Since insulin also sends messages to the brain to tell you that you are hungry, more and more insulin means increasing cravings for carb-laden food.

The only people who are benefiting from refined foods are:

  • The dentists who have to patch up your decaying teeth
  • The pharmaceutical companies who have to sell you drugs to sort out the symptoms of your ailing immune system and your susceptibility to chronic and degenerative disease
  • The food manufacturers, who are only really interested in profit. If you add to this a high intake of caffeine, alcohol, smoking and a lack of exercise, then you will almost certainly be taking a wobbly walk down the road to ill health.

Is it enough just to cut out refined carbohydrates?

Totally banishing all things processed and adopting a healthier diet based on fresh produce is a definite start, but if you have a weight problem linked to insulin resistance, it may not be enough, because if you are still eating a diet that is too high in the wrong sort of carbohydrates — coupled with not eating enough protein or fat to slow down the rate at which these excessive carbs are hitting your blood-sugar levels — you will still have problems. A low-fat/high-carb diet can give you a nasty shock every time you jump on the scales.

The thing to remember is that all carbohydrates have an effect on your blood sugar, and every gram of carbohydrate consumed is equal to one gram of glucose in your bloodstream. So if you are eating more than your body can burn for energy, or can safely store as glycogen in the liver, the rest will be turned to fat.

The key factor in balancing blood-sugar levels and banishing thesymptoms of insulin resistance is controlling your intake of carbohydrates. In order to do this effectively you need to know which ones have the greatest impact on your blood sugar and which do not.

Initially, this will need a little time and effort on your part as you learn about the different sorts of carbohydrates. You may find that the changes you have to make to your diet are quite drastic, but before long — as you start to feel and look better — you will be amazed at how little you miss the wrong kinds of carbohydrates such as processed and sugary foods. Youwon't feel the need to pile your plate high with potatoes and pasta, because your newly balanced blood sugar levels won't be crying out for acarbohydrate fix.

The carb connection

Carbohydrates are a vital part of the human diet - they are our primary source of energy, and in their natural state they are turned into glucose to provide fuel for all the organs of the body.

THERE ARE THREE MAIN TYPES OF CARBOHYDRATES:

1. Simple sugars, or monosaccharides: glucose (blood sugar), and fructose (fruit sugar)

2. Double sugars, or disaccharides: lactose (milk sugar)

Diet Start

3. Complex carbohydrates, or polysaccharides: starches and cellulose (potatoes, rice, grains and dietary fibre).

The simplest carbohydrate of them all is glucose, which is assimilated immediately by the body. The more complex the carbohydrate's structure, the longer it takes the body to convert it into energy - so 'complex' carbohydrates are the slow burners, because they are higher in more complicated sugars and fibre and thus take longer to break down into energy-giving glucose.

So why are carbs the bad guys?

Even though carbohydrates are a vital component of our overall health, there are certain carbs that serve no nutritional purpose whatsoever, and can even cause us harm if consumed too regularly and in large proportions. They are also the main contributors to the escalating obesity problem. So who are these enemies of our health and weight? They are known as refined carbohydrates.

The problems started the minute we began to process our food and strip out the fibre and nutrients from flour and sugar, to make them look appealingly white. In so doing, we made them nutritionally redundant. Food processing removes magnesium, zinc and chromium from flour and sugar - the three minerals that the body needs to metabolize carbohydrates properly. It also drastically reduces vitamins B1, B2, B3, calcium and iron.

Junk foods made up of refined flour and sugar, plus nutritionally empty processed fats, colourings, flavourings and preservatives, make up 75 per cent of many people's diets. These so-called 'convenience foods' are 'empty' calories, which hurtle into the bloodstream, play havoc with insulin and blood- sugar levels and actually deplete the body of essential vitamins and minerals that are needed to perform other important bodily functions. Processed foods have also been stripped of their fibre content, which is essential for controlling insulin production and protecting the body against diseases such as diverticulitis and colon cancer.

Thursday, May 22, 2008

Globesity continue...

WHY WERE PALAEOLITHIC PEOPLE SO HEALTHY?

  • They had an active lifestyle
  • Their protein intake was far higher in polyunsaturated fats, because their animals were smaller and wild
  • Their consumption of fibre was far higher than ours, at around 100g (31/2oz) per day
  • The plants and berries they were eating were providing them with around 300 times more immune- boosting and antioxidant phytonutrients (plant nutrients) and vitamin C than the average diet offers today.

Warning signs from the present day

Diet Start
  • 300,000 American deaths per year are due to obesity-related non- communicable diseases. This accounts for 12 per cent of the entire US healthcare expenditure, costing the country $100 billion (270 billion) per year. The cost of a cheeseburger may be coming down, but its cost to the nation's health most certainly is not.

In 2002 the Centre for Disease Control and Prevention (CDC) in Atlanta estimated that 17 million Americans, including 151,000 under the age of 20, now have diabetes. Type 2 (or adult-onset) diabetes is a disorder resulting from the body's inability to make enough insulin (a hormone that regulates glucose metabolism in the body) - and it can be life-threatening. The risks of heart disease and stroke increase two- to fourfold and the death rate doubles in diabetics. The disease is also the leading cause of blindness, kidney failure and amputations.

  • In 2002 the National Audit Office in the UK revealed the following facts:

58 per cent of adults in the UK are technically overweight, and 20 per cent are clinically obese.

In 1998 around 30,000 people in England alone died prematurely as a direct consequence of being overweight.

In the same year obesity was responsible for 1.8 million lost working days, costing the National Health Service and the economy of the country an estimated 22.5 billion ($3.6 billion).

The number of people who are obese in England has tripled over the last 20 years, and if this trend continues, one in four people will be obese by the year 2010.

  • North American Inuits, whose native diet traditionally consists of whale meat, berries and moss, had no history of heart disease, diabetes or dental decay - until they introduced white flour and sugar into their diets.

Globesity

THE RISKS FROM OBESITY

Being overweight can induce:

¨ Diabetes (type 2: non-insulin‑dependent)

¨ Coronary heart disease and strokes.

It increases the risks of:

¨ Cancer of the colon, prostate, uterus, cervix, breasts and ovaries

¨ Gall-bladder disease

¨ Musculoskeletal disorders and respiratory problems.

We live in a world where half the population seems to be obsessed by dieting, while the other half is suffering from starvation and malnutrition. We have no control over the natural disasters that leave millions fighting to find enough food to survive, but why is it that so many people — not just in the Western world, but also in developing countries — are becoming overweight, leading to soaring levels of diabetes, cardiovascular disease and certain cancers?

We may have made huge advances in technology, but we seem to have lost our connection to nature, and nowhere is this better illustrated than in the food we eat. Our meat is sold in sterile packaging, and contains antibiotics, growth hormones and pesticide residue. We eat (well, some of us eat) fruit and vegetables that are sprayed, waxed, dyed and sometimes irradiated to make them look attractive. The grains that form the bulk of many people's diets are stripped of their fibre and nutrient content. And the milk we drink is pasteurized.

Diet Start

Because there is so much choice, so little time and sometimes so little money, many people choose the convenient pre-packaged or fast-food option, rather than insisting on good-quality, naturally produced, locally available produce. They would rather sit and watch a cookery programme on television while eating a TV dinner or a take-out than get into the kitchen and cook a healthy meal for themselves.

According to the World Health Organization (WHO), in 1995 there were an estimated 200 million obese adults worldwide, and by 2000 that figure had increased to 300 million. But obesity is not just a problem restricted to adults -25 per cent of children and adolescents in the US are overweight. The problem is beginning to replace malnutrition and infectious diseases as the most significant contributor to ill health worldwide. Obesity is now recognized as a disease in its own right, but one that is largely preventable through changes in lifestyle - especially diet.

A lesson from dietary history

For years we have been fed the information that a low-fat/high-carbohydrate diet is the healthiest one for us. The ideal ratio, based on our calorie intake, is 55 per cent carbs, 15 per cent protein and 30 per cent fats. This ratio may work for some individuals, but it certainly isn't right for everyone, particularly those whose carbohydrate intake is based on the wrong sort of carbs.

One of the most thought-provoking arguments for reducing the amount and type of carbohydrates that we eat is the story of Palaeolithic people. Genetically, there is very little difference between ourselves and our hunter- gatherer ancestors, although our diet has certainly changed.

Palaeolithic people were treading the Earth thousands of years before we started to cultivate crops and rear animals for food, and according to scientists they existed on a diet that was primarily protein. Between 60 and 90 per cent of their diet consisted of game animals, eggs, birds, reptiles and insects. The rest comprised green leafy vegetables and berries. Obviously they were leading a far more active life than the average 21st-century human being, but their diet must have been in part responsible for their healthy bones, flawless teeth and good musculature.

It was only at around the time of the agricultural revolution, about 10,000 years ago, that we started to rely on starchy vegetables such as potatoes and cereal crops for the bulk of our diet, and lifestyles became more sedentary. By 4,000 years ago the effects of the change in diet were beginning to be seen in the human body:

¨ There was a reduction in people's stature

¨ Dental decay and malformation of the jaw had become widespread

¨ Disease and epidemics were starting to shorten the human lifespan.

Wednesday, May 21, 2008

Who needs to curb the carbs?

It goes without saying that everyone should consider cutting out refined sugar and flour products, plus high levels of processed foods that are full of junk fats, as they are nutritionally redundant in the human body. You should also consider giving up caffeine and moderating your alcohol intake, particularly if you suffer from any of the symptoms of unstable blood sugar and insulin resistance.

Many people are not even aware of the symptoms of eating too many refined and dense carbohydrates. They have become used to living in what I call 'the discomfort zone'. They have forgotten what it is like to wake up full of energy, think it's normal to feel bloated after meals and rely too heavily on stimulants such as coffee to get themselves through the day.

Diet Start

This sorry state of affairs becomes their normal state of being — it is no wonder that the symptoms of degenerative disease creep up on many people un-noticed. They are so used to living below their physical potential that they don't recognise the signs until it is sometimes too late.

If you are more genetically disposed to gain weight readily when exposed to an unhealthy diet and lifestyle then restricting the amount and type of carbohydrate foods that you eat may be the right choice for you. Such a diet regime may also suit you if you have developed insulin resistance as the result of a diet based on high levels of refined and complex carbohydrates that outweigh your energy requirements, plus too much saturated fat, with little fibre and water. Unless, that is, you are one of those people who leads an active lifestyle or has a high metabolic rate, and already eats a diet with relatively high levels of healthy complex carbohydrates (brown rice, potatoes, wholegrains and certain vegetables, fruit and pulses) without accompanying weight and health problems. If so, why are you reading this? Sounds like you are already doing what is right for your body.

Saturday, May 17, 2008

Men’s Body Click Diet part 4

Benign Prostatic Hypertrophy and Prostate Cancer

Benign prostatic hypertrophy is an enlargement of the prostate that's called benign because it is not due to cancer cells. Still, the enlargement can be far from benign if it results in a lack of control over functions that we all take for granted, including urinating when you want to urinate and only then. A single urinary accident in front of your classmates in the first grade can constitute a major, unforgettable scar in one's childhood; a repeat performance, like that of my sixty-year-old patient while standing in line at the check-in counter at O'Hare Airport, is no joke either. Nor is `benign' the right word to describe the condition that underlies such loss of control. BPH may also involve getting up frequently at night to urinate, with the intense urgency to do so unfortunately combined with a disconcerting hesitancy of performance and a lack of reward in the volume of urine produced.

Although the symptoms of BPH can be severe, it is ironic that men with prostate cancer often have no symptoms. As they age, most men, on biopsy, show signs of prostate cancer. In fact, by the time they are in their eighties, nearly all men have prostate cancer, as defined by the typical cancerous appearance of cells under the microscope. Yet, because this particular cancer grows slowly and spreads infrequently, only a small percentage of men actually become sick or die from the disease. (A man's lifetime risk of dying from prostate cancer is a little less than three per cent.)`'

Diet Start

Given the low odds of illness or death from prostate cancer, it's confusing from a medical standpoint when a 60-, 70- or 80-year-old man has a prostate biopsy and is found to have cancer cells. Because the question of the actual malignancy of the condition — how likely it is that the cancer will grow quickly enough to cause problems — is difficult to resolve, it encourages a more aggressive approach to therapy than might otherwise be warranted. Since aggressive therapy frequently involves either removing testicles or taking female hormones, which can produce dramatic changes in a man's body, this is not a trivial question.

Natural therapies for treating or, more important, preventing illness are not usually studied in the same way as pharmaceuticals, because no one can patent a naturally occurring substance like flaxseed powder and make enough money to justify the enormous expense of carefully conducted, controlled and double-blinded studies. Still, the studies show that consuming soy protein and other isoflavone and lignan-containing foods reduces the risk of prostate cancer. And the cancer data suggest strongly — and there is abundant anecdotal evidence to support it — that the same hormonal environment that leads to the high incidence of cancer in older men inour culture, but not in Chinese and Finnish men, is also associated with the risk for prostatic enlargement.5

The simple strategy for preventing the range and frequency of prostate problems is to consume more soy protein, flaxseed powder and rye fiber. If you happen to be a regular bacon, ham or sausage and eggs kind of guy, I urge you to substitute the shake, with its soy protein and flaxseed powder, at least four days a week. It's good that you're eating protein at your morning meal and getting the lift you need at the beginning of the day, but what you're eating will not protect your health like soy protein and flaxseed. (If you don't have time for breakfast, see the section for travelers in the appendix, where you'll find a quick shortcut that will help you get your soy protein and flaxseed every day.

The Body Clock Diet and Heart Disease: It's not Just the Cholesterol

Coronary heart disease (CHD) is the number one killer of both men and women in the United States. Each year, more than five hundred thousand Americans die of heart attacks caused by CHD. Soy intake has been shown to lower cholesterol and decrease cardiovascular disease associated with high cholesterol. There is growing scientific evidence to support this; for example, one recent study showed that a diet high in soy protein reduced cholesterol by as much as 20 per cent. 6 Other research has demonstrated that soy protein lowers triglycerides and reduces the oxidation of LDL or 'bad' cholesterol, which contributes to blood vessel problems linked to cardiovascular disease? And flaxseed has also been shown to lower both total and LDL cholestero1. The Body Clock Diet, which includes daily intake of soy protein and flaxseed powder, ensures that you get this important protection.

But cholesterol is not the exclusive evil agent in heart disease. Some people, especially those with complicating conditions of diabetes, tobacco smoking and a strong family history of heart disease and obesity, carry cholesterol-related risks. But most people who have heart attacks and other complications of 'hardening of the arteries' have fairly normal cholesterol levels.

The tide of medical thinking is changing when it comes to heart disease. It looks as if issues related to carbohydrate excess, insulin resistance and homocysteine and its control by folic acid will take center stage away from cholesterol. 9 The benefits of substances like flaxseed and soy are not due solely to lowering cholesterol. Soy and flaxseed do indeed lower serum cholesterol, but they also modify carbohydrate and fat metabolism, further decreasing your cardiovascular risk. You don't have to be takingaim at your cholesterol to get benefits from soy, flaxseed and the Body Clock Diet.

Like many men, you may have a tendency not to think about your health, shrugging off warnings from your mother, spouse, doctor and children as well as newspapers and television programs that try to scare or educate you about activities that are dangerous to your well-being. Nor do you want to listen to me when I say that failure to adhere to basic circadian principles may eventually show up as something noticeably wrong with your health. But my advice is simple: there are some painless things you can do to reap what are potentially major rewards for your long-term health.

... andjoyohoxing