Why supplement Vitamin D?
Vitamin D deficiency is quite common.
And most people don’t even know they have low levels.
Because the symptoms are faint but can impact our health significantly.
Those are just some of the long term effects of Vitamin D deficiency.
What is Vitamin D?
Vitamin D, also known as Calciferol, is a fat-soluble vitamin. Two effective forms of vitamin D are:
- Vitamin D2, also known as Ergocalciferol
- Vitamin D3, also known as Cholecalciferol
Vitamin D2 is found in many human-made foods, whereas Vitamin D3 is present in animal-based foods and is synthesized in the skin from 7-dehydrocholesterol.
Both forms of vitamin D, when activated, exhibit the same response, and a similar potency was seen concerning the cure of rickets. 
Both of these vitamins are synthesized commercially and are used in dietary supplements and fortified foods.
Deficiency and toxicity
DEFICIENCY of vitamin D may occur from lack of intake, poor absorption (patients with IBD are at risk), and in case of increased demands.
Vitamin D deficiency results in:
- RICKETS: A condition that occurs in children and infants, causing skeletal deformity.
- OSTEOMALACIA: A condition that occurs in adults, causing weakening and softening of bones.
- Muscle weakness
- Frequent colds and flu
TOXICITY of vitamin D most commonly occurs due to increased intake of supplements. It may present with Anorexia, weight loss, irregular heartbeat, and hardening of blood vessels leading to damage of the heart and kidney.
Vitamin D as a supplement
Vitamin D supplements have become more common and are more frequently used in recent years. The most reliable of getting vitamin D is sunlight.
Therefore, people who don’t get enough sunlight, especially in the USA (Northern half) and Canada, are at risk. Moreover, older people are also at risk of vitamin D deficiency.
Vitamin D supplements are therefore necessary for older people and people living in Northern latitudes. 
Increasing epidemiological evidence linking vitamin D deficiency and autoimmune diseases such as Multiple Sclerosis and Rheumatoid Arthritis was found.
A study conducted by (Kassandra L. Munger, MSc; Lynn I. Levin, Ph.D., MPH; Bruce W. Hollis, Ph.D. al in 2006) examined whether high levels of circulating vitamin D were associated with reduced risk of Multiple Sclerosis. The study suggested that high levels of circulating vitamin D are associated with a reduced risk of Multiple Sclerosis. 
Recent studies have demonstrated a strong association between vitamin D insufficiency and risk of cardiovascular disease along with metabolic syndrome and Diabetes. 
Clinical studies showed a reduced cognitive function, anxiety, and depression with low serum levels of 25-hydroxyvitamin D [25(OH) D], which is the body’s storage form. [5, 6]. Vitamin D supplements enhanced symptoms in patients, indicating a possible causal relationship.
Another study suggested that people taking calcium and vitamin D supplements were able to lose more weight. Extra calcium and vitamin D were said to have an appetite-suppressing effect. 
Vitamin D is an essential vitamin that is necessary for overall health. Two forms of vitamin D (D2 and D3) having different sources are available.
A variety of symptoms are observed in excess or deficiency of vitamin D. Vitamin D supplements are widely used nowadays.
In addition to improving bone health by regulating the absorption of calcium and phosphorus, various other benefits like reduced risk of autoimmune diseases, depression, and cardiovascular disease were found.
Various food products that don’t naturally contain vitamin D are fortified with this nutrient. Regarding the use of vitamin D supplements, quality should be assured to avoid side effects.
Make sure that supplements you take are made in a GMP certified facility and FDA registered. There are many hidden dangers of supplements to those unaware.
“I have the metabolism of a sloth and a body that hates putting on muscles. This curse motivated me to study weight loss and nutrition. I want to share my experiences and knowledge to help you achieve your ideal body.”— Christian Tanobey