PubMed · 6717563
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T H Jukes. No simple answer.. https://doi.org/10.1038/308684c0
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A varied, well-balanced, healthy diet, rich in carbohydrates, is one of the cornerstones of sports nutrition. In addition, an equilibrated supply in energy and nitrogen, the ideal distribution of the nutrients (6 to 9 g carbohydrates per kilogram body weight, 1 to 1.5 g fat per kilogram body weight, 1.2 to 1.8 g protein per kilogram body weight), a well-balanced fluid intake and the choice of food with a high density of nutrients constitute an important cornerstone. All the forementioned elements, which are contained in a basic nutrition, guarantee the needs of the micro- and macronutrients in combination with a cautious substitution of minerals, trace elements and vitamins. The endurance capacity is supported by this high-quality basic diet which can be modified minimally during performance and for regeneration.
The prevalence of clinical obesity in Britain has doubled in the past decade. The Health of the Nation initiative has set ambitious targets for reversing the trend in recognition of the serious health burden which will accrue, but efforts to develop prevention and treatment strategies are handicapped by uncertainty as to the aetiology of the problem. It is generally assumed that ready access to highly palatable foods induces excess consumption and that obesity is caused by simple gluttony. There is evidence that a high fat diet does override normal satiety mechanisms. However, average recorded energy intake in Britain has declined substantially as obesity rates have escalated. The implication is that levels of physical activity, and hence energy needs, have declined even faster. Evidence suggests that modern inactive lifestyles are at least as important as diet in the aetiology of obesity and possibly represent the dominant factor.