Do we need Vitamins
Vitamins are organic compounds that people need in small quantities. Most vitamins need to come from food because the body either does not produce them or produces very little. Each organism has different vitamin requirements. For example, humans need to get vitamin C from their diets — while dogs can produce all the vitamin C that they need. For humans, vitamin D is not available in large enough quantities in food. The human body synthesizes the vitamin when exposed to sunlight, and this is the best source of vitamin Different vitamins play different roles in the body, and a person requires a different amount of each vitamin to stay healthy. Vitamins are organic substances present in minute amounts in natural foodstuffs. Having too little of any particular vitamin may increase the risk of developing certain health issues.
A vitamin is an organic compound, which means that it contains carbon. It is also an essential nutrient that the body may need to get from food.
How do vitamins help the body?
Vitamins and minerals are considered essential nutrients—because acting in concert, they perform hundreds of roles in the body. They help shore up bones, heal wounds, and bolster your immune system. They also convert food into energy, and repair cellular damage.
The term “hidden hunger” has been used to describe nutritional deficiencies that occur when people consume adequate calories but inadequate micronutrients. “Hidden hunger” is largely due to eating patterns dominated by energy-dense, but nutrient-poor, foods that are often relatively inexpensive.
Large nationally representative surveys indicate that the intake of certain nutrients in the US falls below the IOM’s Estimated Average Requirement (EAR)—the average daily nutrient intake level estimated to meet the requirements of half the healthy individuals in a particular life stage and gender group.
For example, in an analysis of data from NHANES for 2003 through 2006, the population had total usual intakes from all food sources (excluding supplements) below the EAR for vitamins A, C, D, and E (45%, 37%, 93%, 91%, respectively), calcium (49%), and magnesium (55%).