BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Vitamin D is both a nutrient we eat and a hormone our bodies make. It is a fat-soluble vitamin that has long been known to help the body absorb and retain calcium and phosphorus; both are critical for building bone.

Detailed explanation-2: -Many dairy products, such as milk and yogurt, are fortified with vitamin D as well, as are non-dairy alternatives like soy milk, almond milk, and oat milk. Fortified milk typically has around 3mg (120 IU) of vitamin D, and non-dairy alternatives have between 2.5 and 3.6mg per 1 cup.

Detailed explanation-3: -Editor’s note: Nationally recognized nutrition expert Marion Nestle answers readers’ questions in this column written exclusively for The Chronicle.

Detailed explanation-4: -Vitamin D is the sunshine vitamin that has been produced on this earth for more than 500 million years. During exposure to sunlight 7-dehydrocholesterol in the skin absorbs UV B radiation and is converted to previtamin D3 which in turn isomerizes into vitamin D3.