Which of these vitamins may be obtained directly from the diet or by the conversion of beta carotene?

Question

Quizplus · Accepted Answer

Vitamin A can be obtained directly from the diet or by the conversion of beta carotene. Vitamin D is synthesized in the skin with exposure to sunlight and can also be obtained from the diet or supplements. Vitamin B-12 is found primarily in animal products and is not obtained from beta carotene. Vitamin C is found in fruits and vegetables and cannot be obtained from beta carotene. Vitamin K is found in leafy green vegetables and can also be synthesized by intestinal bacteria.

Which of These Vitamins May Be Obtained Directly from the Diet