Explain why regularly ingesting a large excess of a fat-soluble vitamin can lead to severe health problems, whereas ingesting a large excess of a water-soluble vitamin often causes no major health problems.

Fat-soluble vitamins are consumed using bile salts and fats. These vitamins do not function as co-enzymes. A few examples of fat-soluble vitamins include vitamin A and D.

Water-soluble vitamins are easily consumed and do not require bile salts and fats. These vitamins function as co-enzymes. Some examples of water-soluble vitamins include vitamin B and C.

Vitamins are vital organic compounds required for normal metabolism. They are classed as fat-soluble and water-soluble vitamins.

Fat-soluble vitamins are soluble in fat and insoluble in water. Hence, they are not excreted easily from the body. Therefore, ingesting large excess of fat-soluble vitamins can lead to several health problems.

On the other hand, water-soluble vitamins are soluble in water and insoluble in fat. Hence, they are excreted easily from the body. Therefore, ingesting large excess of water-soluble vitamins does not cause several health problems.