Looking for the definition of overall? Find out what is the full meaning of overall on Abbreviations.com! 'Overall' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations resource. Login
There are six major classes of nutrients found in food: carbohydrates, proteins, lipids (fats and oils), vitamins (both fat-soluble and water-soluble), minerals, and water. These six nutrients can be further categorized into three basic functional groups.
The essential vitamin B-3. 1  Vitamin B-3, also known as niacin, is an essential nutrient for the body.  Niacin is found naturally in many foods, including fruits, vegetables, meat, and beer.