Vitamins are a group of micronutrients necessary for health. The different types of vitamins have different activity in the body, but all of them help prevent disease and boost bodily functioning. Getting sufficient nutrients is simple if you eat a diet high in fruits and vegetables, and people with a healthy, balanced diet should be able to get all they need from food.
There are two different types of vitamins: fat soluble and water soluble. A fat soluble vitamin needs fat for proper absorption, and it can be stored in the body in fat cells. A water soluble vitamin can’t be stored, so it must be consumed every day to maintain adequate amounts in the blood. Vitamins D, A, E and K are fat soluble, and all others are water soluble. Without vitamins, many of the essential processes of the human body would break down. Deficiencies cause serious health problems, such as rickets and scurvy, as well as affecting the organs and tissues in many smaller ways. All of the organs and tissues in the body depend on these micronutrients to help with cellular growth and repair, immune system functioning, and metabolism. In addition to the immediate effects of vitamins, they also have a long-term impact. A diet high in vitamins lowers the risk of some types of cancer as well as heart disease and dementia. This occurs because vitamins are often also antioxidants, compounds that neutralize free radicals and stop DNA damage.
Most whole foods contain vitamins, but many of these micronutrients are stripped away in refined foods such as refined flour, table sugar, and white rice. Fruits and vegetables are particularly high in all of the necessary micronutrients, and people who eat plenty of produce tend to have much higher blood serum levels than people who don’t eat many fruits or vegetables.