Related: How Much Vitamin D Do Women Need per Day ... which is higher-than-normal levels of calcium in the blood. Hypercalcemia causes the symptoms of vitamin D toxicity. Vitamin toxicity can ...

A panel of public health experts has issued a warning against the routine use of vitamin D and calcium supplements to prevent ...

However, 800 to 1,000 IU is the dose that may have a better chance of giving a patient a normal vitamin D level. In some countries, vitamin D is listed in micrograms, and the relationship is as ...

Those with low serum vitamin D levels (<30 ng/mL) were nearly 5 times more likely to experience menstrual disorders, including long cycles, oligomenorrhea (infrequent periods) and amenorrhea (absence ...

Research has also shown that higher levels of ... also better than normal.” Plus, it provides absorbable forms of vitamin D and B12, which are important for postmenopausal women.

The National Health and Nutritional Examination Survey confirmed that people with vitamin D deficiency are at significantly higher risk of depression than individuals with normal levels.

Researchers determine the impact of vitamin D levels during pregnancy and their role in maternal and infant health outcomes.

Over the past few decades, the "normal" blood level of vitamin D (25-OH vitamin D) was based on the amount needed to keep PTH from becoming abnormally high. Again, PTH at high levels can cause ...