Like most other vitamins and minerals, vitamin A, or retinol, plays an important role in growth and development. However, monitor your vitamin A intake closely if you take supplements or eat a diet high in vitamin A foods, because overdoses can be...
Vitamins are micronutrients, substances you must obtain in small amounts from your diet that your body needs to function normally. Vitamins are grouped into water-soluble and fat-soluble categories. Unlike water-soluble vitamins, your body stores...
From time to time it may become necessary to supplement your diet using vitamin supplements. Malnutrition and illness that affect fat absorption may contribute to vitamin deficiencies such as vitamin D deficiency. This can lead some people to...
Your body requires adequate amounts of each of the essential vitamins to function properly. Vitamin deficiencies can lead serious medical problems, ranging from weak bones to anemia. Although the amounts of vitamins typically obtained from your...
It is possible for a person to take too many vitamins. Water-soluble vitamins are flushed from the body and do not accumulate in tissues, but fat-soluble vitamins are stored by the body in the liver and in body fat. Overdoses of some vitamins can...
While some vitamin D is good for you, too much can be harmful to your health. It's quite possible to overdose on vitamin D because your body stores this fat-soluble vitamin, so toxic levels can accumulate over time if you consume too much. Vitamin...
Ingesting too much vitamin A can lead to birth defects, liver abnormalities, central nervous system disorders, and reduced bone density, according to the National Institutes of Health. While it's natural to think of vitamins as healthy, it can be...
Vitamin D promotes calcium absorption and regulates calcium levels in the blood. Sunlight is a major source of vitamin D because your body makes vitamin D when your skin is exposed to ultraviolet rays. Low levels of vitamin D can cause weak and...
Vitamin A is essential to human life, but too much of it can cause serious adverse effects. Consuming too much of this nutrient can lead to vitamin A toxicity, a condition referred to as hypervitaminosis A. By educating yourself about the types...
Vitamin A is essential to the proper functioning of your eyes. Involved in both low-light and color vision, vitamin A is converted by your body into retinal, a molecule that helps your retinas to absorb light. Found in a variety of plant and...
A study published in the March 2000 issue of the "Archives of Family Medicine" reported that approximately 40 percent of 11,000 people questioned for the "Third National Health and Nutrition Examination Survey" reported taking a vitamin or mineral...
Cod liver oil products can contain large amounts of vitamin A. If you take this oil, you run a potential risk of getting too much vitamin A and developing a condition called hypervitaminosis A. You can take cod liver oil in reduced doses, however,...
There are 13 different vitamins essential to your good health. They help you grow, aid in nerve and digestive functions and bolster your immune system. If you eat a variety of foods, you'll get most of the vitamins you need. The Institute of...
Carrot juice is a non-toxic natural beverage and is one of our primary dietary sources of vitamin A. Drinking excessive amounts of carrot juice may turn your skin orange-yellow, a warning sign that you are ingesting too much vitamin A, but carrot...
Consuming too many vitamins can cause vitamin toxicity, or hypervitaminosis. Vitamins absorbed from food rarely lead to toxicity, but taking too many supplemental vitamins can. While the body generally excretes excess water-soluble vitamins,...
Vitamin A works to keep the eyes free from disease in addition to doubling up as an antioxidant fighting free radicals in the body. This fat-soluble vitamin is found in foods such as liver, whole milk and fortified cereal. Vitamin A can be...
You may hear about the amazing health benefits you can reap by taking vitamin supplements. However, the best source of vitamins is your daily diet, and eating a well-balanced diet that encompasses all the major food groups should supply you with...
You may think that taking vitamin D supplements is good for you, especially if you wisely use lots of sunscreen when you're outdoors, or you don't eat a lot of dairy foods. But too much of a good thing can be bad for you, and that applies to...
Vitamin A is a fat-soluble micronutrient that serves several important functions in your body. In addition to supporting your vision, skin and reproductive health, immune system and cell specialization, vitamin A is important to bone formation and...
Vitamin A belongs to a group of vitamins called fat-soluble vitamins. When fat-soluble vitamins enter the body, you use what you need and then your body is able to store excess amounts in your liver and fat tissues. Because the body has the...
Vitamin A belongs to a group of nutrients called fat-soluble vitamins. Excess amounts of these vitamins, which require dietary fat to be absorbed properly, can be stored in your body. Consuming excessive amounts of vitamin A can lead to toxic...
It's very rare that you could get too much of any particular vitamin or mineral from diet alone, but it is possible to overdose on vitamins and minerals while taking supplements. Supplements are meant to be used to help fill in any gaps of...
Vitamin D overdose goes by the medical terms hypervitaminosis D or vitamin D toxicity. Vitamin D is a fat-soluble vitamin that's stored in your liver and body fat, and this makes toxicity more likely than if you took too much of a water-soluble...
Kidney stones are hard, crystalline masses that can form in your urinary tract and trigger extreme pain in your back, side or lower abdomen. The presence of certain types of kidney stones is related to your body's vitamin D status. However, these...
More than 50 percent of all Americans take vitamins, says the National Institutes of Health, and this number had been relatively solid for about 10 years at the time of publication. The most popular vitamins on the market are B-complex, vitamins C...
Vitamin D is one of the fat-soluble vitamins, obtained from your diet and produced by your body after exposure to sunlight. Excess vitamin D, or hypervitaminosis D, almost always occurs due to overuse of supplements rather than from your diet or...
There are many forms of over-the-counter multivitamin available for purchase. Multivitamins come in chewable, powder, tablet, capsule, caplet and liquid form. Liquid multivitamins are one of the easiest multivitamins to take, and might be...
The human body requires 13 vitamins, which are organic compounds, for various biochemical reactions. Most are water-soluble, but four are considered fat-soluble and include vitamins A, D, E and K. Fat-soluble vitamins are absorbed through the...
Vitamin D is a fat-soluble vitamin responsible for the absorption of calcium and bone mineralization. Cholecalciferol, also known as vitamin D3, is the form of vitamin D that your body produces after exposure to sunlight. Once absorbed, vitamin D3...