Nutrition Definition and 7 Discussions

Nutrition is the biochemical and physiological process by which an organism uses food to support its life. It includes ingestion, absorption, assimilation, biosynthesis, catabolism and excretion.The science that studies the physiological process of nutrition is called nutritional science (also nutrition science).

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  1. nomadreid

    Evidence of foods that have been shown to have a direct positive influence on cancer patients

    Using the keywords "nutrition" and "cancer", the Internet spews out thousands of articles. Ignoring the supermarket-checkout-magazine type of article, the others tend to either (a) be debunking various myths or (b) advising to avoid carcinogenic substances or (c) recommending to have a healthy...
  2. T

    Medical Ultra-processed Food = Greater Cancer Risk

    Just out in the British Medical journal. or permalink doi: And here is a link to the NOVA classification of "Ultra-processed" food...
  3. F

    Perfect food with no need for excretion?

    Perfect Food : Is it possible to design our daily food/meals in such a way that it has all the nutrients (100% absorb-able) but no waste parts, thus removing the necessity for the body to excrete anything at all? (This will reduce the food quantity making it cheaper; I understand that fiber...
  4. .Scott

    Sugar's Depressing for Men

    According to this study: What I find interesting is that the authors did not list the byproducts produced when fructose is metabolized as a possible vehicle for what they found. In fact, in one news article a scientist commenting on the study...
  5. M

    Non-caloric essential nutrients big vs small animals

    It is true that big animals contain more calories than small animals. However, are the figures for the content of essential nutrients that are not calories different? Such nutrients may be limiting factors and require foraging strategies that would be suboptimal from a simple calory point of...
  6. G

    Diet consisting of only a few types of foods

    Thinking of starting keto, and thought it would be fun to try and live off of coconut milk, low carbohydrate bread, butter, and some kind of meat or fish for dinner. Provided I take a multivitamin, along with calcium and magnesium pills, would this diet be as healthy as any other? Could I be...
  7. J

    Hair and nutrition

    When would I retain more nutrition in my body - when I have more hair or less hair?