Vitamin D helps to facilitate normal immune system function in children and adults.  Vitamin D deficiency can occur if you don't consume the recommended levels of the vitamin over time, you have limited exposure to the sun, or you have difficulty absorbing vitamin d from foods.  Vitamin d3 benefits include reducing the risk of developing bone abnormalities and increased exposure to certain diseases.
Providing 400 units daily of Infant vitamin d drops is critical for normal growth and development of teeth and bones.  In a recent study by the Journal of the American Medical Association and the American Academy of Pediatrics, recommended 400 units of vitamin D3 taken daily, which would be beneficial to newborns and babies up to 12 months.  Recent studies revealed that reduced levels of vitamin d have been proven to result in severe asthma in children.

Babies who are exclusively breast-fed or even partially breast-fed are unlikely to get enough vitamin D from their mothers.  Most people are vitamin D deficient and don't know it.  Vitamin D is important for adults as well.  A study published in September 2012 suggested that low levels of vitamin D may increase the risk of heart attack and early death.

According to the Medical College of Georgia, vitamin D probably plays a role in maintaining a healthy body weight.  It's important to talk to your doctor to determine the specific amount of Vitamin D3 for children and adults.  

If you are breastfeeding, or are concerned about your levels of Vitamin D, have your doctor give you a blood test.  The blood test will be able to determine your present levels.  For more information on Vitamin D for children, visit