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Too much protien

marsayy
marsayy Posts: 1
edited January 8 in Food and Nutrition
I'm under on the calories fat and suger but over slightly on the protein, is it important?

Replies

  • BarackMeLikeAHurricane
    BarackMeLikeAHurricane Posts: 3,400 Member
    MFP sets your protein goal too low. See protein as a minimum, not a maximum. It's possible to have too much protein, but it's unlikely.

    "It has been observed that the human liver cannot safely metabolise much more than 285-365 g of protein per day (for an 80 kg person), and human kidneys are similarly limited in their capability to remove urea (a byproduct of protein catabolism) from the bloodstream. Exceeding that amount results in excess levels of amino acids, ammonia (hyperammonemia), and/or urea in the bloodstream, with potentially fatal consequences,[1] especially if the person switches to a high-protein diet without giving time for the levels of his or her hepatic enzymes to upregulate. Since protein only contains 4 kcal/gram, and a typical adult human requires in excess of 1900 kcal to maintain the energy balance, it is possible to exceed the safe intake of protein if one is subjected to a high-protein diet with little or no fat or carbohydrates. However, given the lack of scientific data on the effects of high-protein diets, and the observed ability of the liver to compensate over a few days for a shift in protein intake, the US Food and Nutrition Board does not set a Tolerable Upper Limit nor upper Acceptable Macronutrient Distribution Range for protein.[2] Furthermore, medical sources such as UpToDate[3] do not include listings on this topic."

    Source: http://en.wikipedia.org/wiki/Rabbit_starvation
  • Jester522
    Jester522 Posts: 392
    Having too much protein isn't a big deal. High protein diets do not have effect on kidney function as once thought. In fact, if youre going to go over in any category at all it should be protein. Realistically you only need about 0.8-1.0g/lb lean body mass per day (or more if your trying to gain lean mass). People who do super high protein diets only see the pain in their wallet, not their gut.

    You should always be under your mark in sugar.... which should be zero.
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