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By Dr Ross Walker I was recently sent the below question from a man in Western Australia: “Can you provide some information on human mineral requirements (both major and trace) as affected by age, gender and physical activities? By world standards Australian soils are generally regarded as relatively poor (proportion of clay, loam and sand) also affected by rainfall and potential for leaching. There is also an interaction with plant and animal uptake and storage.” Typically, when most people talk of nutrition, the focus is on macronutrients: fat, carbohydrates and protein. The fat and carbohydrates are our major energy sources,...

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By Dr Ross Walker For many years there has been conjecture in the medical profession around the place of stress and its relation to a number of diseases. There are still some members of the medical profession who believe that stress has no place in the precipitations or causation of cancer whereas most people in cardiology do believe there is a clear & robust relationship. A number of years ago, the Interheart study suggested that 20% of heart disease was directly related to some form of stress. Professor Geoffrey Toffler from Royal North Shore Hospital in Sydney has performed elegant...

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By Dr Ross Walker Over a decade ago, I wrote a book titled, “Diets Don’t Work”. Diets don’t work because you go on a diet like you go on a holiday. You almost always come back from a holiday and you typically stop the diet after a few months. In the first month of your diet, you may lose up to 5 kg but then, despite ongoing dieting, your weight stays stable. The typical explanation for this is that in the first month you are mainly losing water and muscle and the more ingrained fat stores take months and months...

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By Dr Ross Walker   Just when you thought it was safe to tuck into your favourite dish on the weekend of bacon and eggs, new research was released this week published in the highly acclaimed Journal of the American Association of Medicine suggesting we should rethink this position. This extensive study pooled data from six US cohorts totalling 29,615 people of whom 45% were males and 31% African Americans. The average age of the people in the study was 52 followed for up to 31 years but on average 17 years. Thus, it was a very large study with...

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Over the past decade, there has been increasing emphasis placed on good quality sleep as part of an excellent health regimen. Some studies have suggested that 7–8 hours of good quality sleep per night is as good for the body as not smoking. 

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