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I'm curious what nutrients can only be animal-derived.

I came across the following list recently:

1. Vitamin B12

2. Creatine

3. Carnosine

4. Cholecalciferol (Vitamin D3)

5. Docosahexaenoic Acid (DHA)

6. Heme-iron

7. Taurine

Source: http://authoritynutrition.com/7-nutrients-you-cant-get-from-...



That's not a list of nutrients that can only be animal-derived. It's a list of nutrients that are rarely (or never) found in plant foods.

Vitamin B-12, for instance, is bacteria-derived. It's easy to obtain via supplements and fortified plant-based foods.


Your source doesn't even agree with the assertion that the nutrients can only be animal-derived (at least for some of them).




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