Nutrition Science

When it comes to food, more is never better, with one exception; more variety. Variety is the single best advice that can be followed for healthy eating. And there is plenty to choose from. There is no such thing as the single best diet or a special ingredient that fixes problems. There are hundreds of healthy ways of eating, one meal at a time, and within the caloric limits of one's life style. Variety makes sure that one gets all the amino acids, all the vitamins, and all the minerals needed to stay healthy; without counting them. It is important to note that during growth, illness, and for weight control sensible adjustments of one's diet may be necessary and some of us have to avoid certain foods due to allergy and intolerance.

Caloric Foods

This section provides information about macronutrients, their calories and the nutritional role of proteins, carbohydrates, & fats. How is the energy contained in these nutrients converted into movement and growth? What other important roles do these nutrients play, and how do they work together?

Vitamins & Minerals

Micronutrients are non-caloric essential elements like vitamins, minerals, and essential fatty acids. Essential nutrients are all those, which our body cannot synthesize on its own. Some micronutrients are non-essential, such as cholesterol and mono-unsaturated fatty acids. If the latter are not part of the diet, our liver will make them from scratch.


Dietary supplements usually contain vitamins and minerals, but also non-essential elements from plants (phytochemicals) such as antioxidants, fibers, probiotics and prebiotics. What is the role of each of these elements? Can they be combined? Is it better to use supplements or get essential nutrients from whole foods?


Additions to our diets of nutrients and components that provide health benefits beyond a natural diet are called nutraceuticals or functional foods. They are usually phytochemicals or products of microbial systems that are not necessary for a healthy life style, but can improve the physiological performance of the body. In order to have such a stimulating effect, they need to be extracted and/or enriched from plant or bacterial cultures.

Our Genes and Food

Our genes affect how our body processes our food and we also know more about how certain nutrients influence our genes for better or for worse. The latter is a novel science known as nutrigenomics and is based on the observation that each one of us is genetically a tiny bit different.


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