Only 1% Pass This Expert Nutrition Quiz! 🧬✨

Added: 2026-05-22

[00:00:00]What is the main source of vitamin D?

[00:00:09]Time's up. It's sunlight.

[00:00:11]Which vitamin is synthesized by gut bacteria?

[00:00:21]Here is the answer. Vitamin K.

[00:00:24]What protein binds vitamin B12 in the stomach?

[00:00:35]The correct choice is haptocorrin.

[00:00:38]Which mineral is part of the enzyme urease?

[00:00:47]The answer is nickel.

[00:00:50]Name the cofactor for methylmalonyl-CoA mutase.

[00:01:00]And the answer is cobalamin.