Joint bundling is a subcategory of pure bundling in which the two products are offered together for one bundled price; Leader bundling is a subcategory of pure bundling in which a leader product is offered for discount if purchased with a non-leader product, accessory or other item.
Vitamin B Helps Your Metabolism. You should balance your vitamin supplements to match your needs. A multi-vitamin is great, but if you are extremely fatigued all the time and don't get enough vitamin B in your diet, then adding vitamin B-12 will improve your flagging energy. B-complex vitamins provide you with: 1  Boosted metabolism. 2  Healthy skin.
Organic nutrients required in small amounts to maintain growth and normal metabolism are called vitamins. Raw materials that the body can use to assemble some vitamins are provitamins. Organic nutrients required in small amounts to maintain growth and normal metabolism are called vitamins. Raw materials that the body can use to assemble some vitamins are provitamins.