Beef organ supplements are made of cow organs. Learn how these natural sources of vitamins and minerals may enhance your health and what to look for.

Hoatzin. Image via Francesco Veronesi from Italy, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons The Hoatzin, also known as the ...

The other is the digestive and metabolic efficiency of the cow herself. He identified the following factors that contribute to losses of energy that are wasted on anything other than milk production: ...