Dietary sources include salmon, mackerel, herrings, tuna, egg yolk, cheese, butter, beef liver, fortified margarine, fortified milk, fortified cereals and mushroom. Vitamin D can also be obtained through supplements. People who spend most of their day indoors and therefore not exposed to much sunlight, especially children and the elderly, can be given vitamin D supplements in addition to their diets.
Vitamin B1, also called THIAMINE or ANEURINE or ANTI-BERI-BERI is a water soluble vitamin and one of the essential B-group vitamins the body needs to function well. It cannot be synthesized (produced) by human body and should be supplied in the diet.