Taurine Biosynthesis

Taurine is naturally derived from cysteine (found in oats, beans, rice, bananas, etc.) Mammalian taurine synthesis occurs in the pancreas via the cysteine sulfinic acid pathway. In this pathway, cysteine is first oxidized to its sulfinic acid, catalyzed by the enzyme cysteine dioxygenase. Cysteine sulfinic acid, in turn, is decarboxylated by sulfinoalanine decarboxylase to form hypotaurine. Hypotaurine is enzymatically oxidized to yield taurine by hypotaurine dehydrogenase.

Taurine is also produced by the transsulfuration pathway, which converts homocysteine into cystathionine. The cystathionine is then converted to hypotaurine by the sequential action of three enzymes: cystathionine gamma-lyasecysteine dioxygenase, and cysteine sulfinic acid decarboxylase. Hypotaurine is then oxidized to taurine as described above.

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Oxidative degradation of cysteine to taurine

From https://en.wikipedia.org/wiki/Taurine

Cronometer Food Diary example for 110 lb 5’4″ female age 61 moderately active:

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Screenshot 2019-10-28 at 9.38.28 AM

Screenshot 2019-10-28 at 9.39.11 AM

Dog Food

Dished up homemade vegan dog food: water, lentils, rice, etc. Can add apple-cider-vinegar to prevent fleas and worms. Maybe add a bit of (Ad) Taurine? Enzymes for elders? Dogs need one gram of protein per pound of ideal body weight per day (ie: 6g/day for chihuahua).

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