Final answer:
High doses of riboflavin are not generally toxic due to its water-soluble nature, with a daily recommended intake of 1.5-2.0 mg. Sunlight exposure significantly reduces levels of vitamin B9, not riboflavin. Gamma rays, which are a different concern, can cause serious cellular damage.
Step-by-step explanation:
The statement about riboflavin consumption being extremely toxic in high doses is not entirely accurate. Riboflavin, also known as vitamin B2, is water-soluble, which means that excess amounts are usually excreted through the urine rather than build up to toxic levels. However, there is a recommended daily intake which, for adults, averages 1.5-2.0 mg per day depending on calorie intake. Riboflavin is essential for good health, forming part of the coenzymes FMN and FAD which are vital for many cellular processes. It is interesting to note that while riboflavin itself is not destroyed by sunlight, exposure to intense sunlight can reduce vitamin B9 (folate or folic acid) levels by up to 50 percent in people with light skin within an hour. This is significant because vitamin B9 is critical for successful reproduction and overall health. In terms of cellular damage, gamma rays, unrelated to riboflavin, can cause serious effects when absorbed by living cells due to their high energy. This indicates the varying impact that different forms of radiation can have on vitamins and cellular health.
The complete question is:
Riboflavin consumption in high doses is extremely toxic. True/False