All about fruitarianism with a long-term fruitarian, Lena

One study found that 0.85 mg of calcium was lost for each gram (1 g) of protein in the diet. A meta-analysis of 16 studies in 154 adult humans on protein intakes up to 200 g found that 1.2 mg of calcium was lost in the urine for every 1g rise in dietary protein. A small but more focussed study showed a rise of 40 mg in urinary calcium when dietary animal protein was raised from 40 to 80 g. Urinary calcium to dietary protein ratio is 1 mg to 1g. The empirical observation that each 1 g of protein results in 1 mg of calcium in the urine agrees very well with the phosphorus content of animal protein (about 1 percent by weight).

This means that a 40 g reduction in animal protein intake from 60 to 20 g would reduce calcium requirement by the same amount as a 2.3 g reduction in dietary sodium, i.e. from 840 to 600 mg

How animal protein exerts its effect on calcium excretion is not fully understood. 

New Comments

  • Dear Lena, I am so impressed by your goals. Please let me know how I can help. If I have read the ...

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  • Thank you! I prefer breaststroke for many reasons. I wish I had a lake to swim :)

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  • Damn - You did 6K !!! That's huge. I could turn you into a 10K lake swimmer ! :-)

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  • Hey, saw your lap-swimming page for the first time! A 1650 is a good distance for a non-competitive swimmer!

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  • Hi Lena, I respect that we all have a different opinion on the definition of the word fruitarian ...

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  • 30 year fruitarian, overcame mucho health problem. Eat like a gorilla and kick butt!! Everyone ...

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Aristotle

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