Question

question 1
1 pts
megadoses of vitamins are
safe to take if the vitamins are water soluble.
useful for preventing chronic diseases.
available naturally from a wide variety of foods.
likely to cause toxicity problems.

Explanation:

Megadoses refer to extremely large doses of vitamins. Water - soluble vitamins (like vitamin C and B - complex vitamins) are generally excreted in urine if in excess, but some water - soluble vitamins (e.g., vitamin B6) can still cause toxicity at very high doses. Fat - soluble vitamins (A, D, E, K) are stored in the body's fatty tissues and liver, and megadoses of them are more likely to cause toxicity. Also, there is no evidence that megadoses of vitamins are useful for preventing chronic diseases in a healthy population. Vitamins in megadoses are not available naturally from a wide variety of foods (foods provide vitamins in normal, ＂physiological＂ doses). So, megadoses of vitamins （whether water - soluble or fat - soluble, but especially fat - soluble) are likely to cause toxicity problems.

Answer:

likely to cause toxicity problems.