If you eat a well-balanced diet, chances are you are getting all the vitamins and minerals you need. Dr. Linda Brice, a nursing professor at Texas Tech Medical Center, says many times it is important to take a supplement.
Most nutritionists would say if you eat right you don't have to take a vitamin, but Americans have a tendency to eat fast food and not get their fruits and vegetables -- which are the best source of your vitamins. Without those foods, you're not going to get the vitamins you need. There are many vitamin supplements available but every individual has different needs.
Dr. Brice says that individuals that need to take a multivitamin include: pregnant women, lactating moms, infants, adolescents, the elderly, if you are an individual who smokes a lot, abuses alcohol, or if you are chronically ill.
People who take vitamins A, D, E, or K should be careful because an overabundance of these fat-soluble vitamins can be toxic. It's critical for parents to understand that their child could overdose from vitamins, particularly if they contain iron.
If you're wondering about Vitamin C, Dr. Smith says it's all right to take extra Vitamin C when you feel a cold coming on because it's water-soluble so it won't build up in your system. Some studies show that it may actually help you feel better faster.