Tag: Safe vitamin d levels

According to research, a common supplement dose is 25mcg (1,000 IU), but many people dangerously confuse this with 25mg, a dose 1,000 times higher. Understanding if 25mg of vitamin D is ok is therefore a critical safety issue, not just a matter of proper health. It is an extremely toxic amount.

While vitamin D is essential for health, a dangerously high level, known as vitamin D toxicity or hypervitaminosis D, can occur from excessive supplementation. This condition typically arises when serum 25-hydroxyvitamin D (25(OH)D) concentrations surpass 150 ng/mL, leading to a host of serious health problems.

While most people are concerned with getting enough vitamin D, an excess of this fat-soluble vitamin can be harmful, with levels above 125 nmol/L (50 ng/mL) potentially causing health problems. An unsafe vitamin D level, also known as hypervitaminosis D, is almost always the result of taking excessively high doses of supplements over an extended period.