Carlson Labs Vitamin D3 2000 IU promotes strong bones by assisting in calcium metabolism. Vitamin D helps regulate and control the metabolism of Calcium and Phosphorus by aiding in the absorption of these two minerals from the small intestine, and by directly affecting the rate at which these minerals form and maintain bone.
The fat-soluble vitamin D's most important role is maintaining blood levels of calcium, which it accomplishes by increasing absorption of calcium from food and reducing urinary calcium loss. Both effects keep calcium in the body and therefore spare the calcium that is stored in bones. When necessary, vitamin D transfers calcium from the bone into the bloodstream, which does not benefit bones. Although the overall effect of vitamin D on the bones is complicated, some vitamin D is necessary for healthy bones and teeth.
The majority of vitamin D in the body is created during a chemical reaction that starts with sunlight exposure to the skin. Cholecalciferol (vitamin D3) is the animal form of this vitamin.
In adults, vitamin D deficiency may result in a softening of the bones known as osteomalacia. This condition is treated with vitamin D, sometimes in combination with calcium supplements. Osteomalacia should be diagnosed, and its treatment monitored, by a doctor. In people of any age, vitamin D deficiency causes abnormal bone formation. It occurs more commonly following winter, owing to restricted sunlight exposure during that season. Living in an area with a lot of atmospheric pollution, which can block the sun's ultraviolet rays, also appears to increase the risk of vitamin D deficiency.
Vitamin D deficiency is more common in strict vegetarians (who avoid vitamin D-fortified dairy foods), alcoholics, and people with liver or kidney disease. People with liver and kidney disease can make vitamin D but cannot activate it.
Vitamin D deficiency is more common in people suffering from intestinal malabsorption, which may have occurred following previous intestinal surgeries, or from celiac disease. People with insufficient pancreatic function (e.g., those with pancreatitis or cystic fibrosis) tend to be deficient in vitamin D. Vitamin D deficiency is also common in individuals with hyperthyroidism (Graves' disease), particularly women.
In children, vitamin D deficiency is called rickets and causes a bowing of bones not seen in adults with vitamin D deficiency. Vitamin D deficiency is common among people with hyperparathyroidism, a condition in which the parathyroid gland is overactive. In a study of 124 people with mild hyperparathyroidism, vitamin D levels were below normal in 7% of them and suboptimal in 53% of them. Vitamin D deficiency is also common in men with advanced prostate cancer. In one study, 44% of 16 men with advanced prostate cancer had decreased blood levels of vitamin D.
One in seven adults has been reported to be deficient in vitamin D. In one study, 42% of hospitalized patients under age 65 were reported to be vitamin D deficient. In this same study, 37% of the people were found to be deficient in vitamin D, despite the fact they were eating the currently recommended amount of this nutrient. Vitamin D deficiency is particularly common among the elderly. Age-related decline in vitamin D status may be due to reduced absorption, transport, or liver metabolism of vitamin D.
People who get plenty of sun exposure do not require supplemental vitamin D, since sunlight increases vitamin D synthesis when it strikes bare skin. Although the recommended dietary allowance for vitamin D is 200 IU per day for adults, there is some evidence that elderly people need 800 to 1,000 IU per day for maximum effects on preserving bone density and preventing fractures. Sun-deprived people should take no less than 600 IU per day and ideally around 1,000 IU per day.
About Carlson Laboratories
Founded by John and Susan Carlson in 1965, Carlson Laboratories has been a family owned and operated business for over 40 years. Since no one cares more about quality than the people who put their names on it, Carlson Laboratories is dedicated to providing only the highest quality nutritional supplements.
Carlson Laboratories began with one vitamin E formula. Since then, the line has grown to become the most complete line of natural vitamin E products in the world. Carlson Laboratories product range has expanded through the years to meet the nutritional needs of our customers. Our product lines now include award-winning Norwegian fish oils, a full line of vitamins, minerals, amino acids, special formulations and nutritional supplements.