New research published this week in JAMA indicates that there's been an increase in the amount of vitamin D [1] adults are consuming, and it's much more than what's needed.
Vitamin D is essential in supporting bone health, and the current recommended daily allowance [2] (RDA) for healthy adults is 600 IU. The study indicates, however, that there's been a significant jump in adults consuming more than 1,000 IU of vitamin D, some exceeding 4,000 IU. Additionally, most healthy adults already receive enough vitamin D [3] through their diets and exposure to sunlight. Consuming large amounts of vitamin D can possibly cause negative side effects. The biggest risk being overabsorption of calcium [4] in the system, which can lead to digestive issues and kidney stones.
If you're looking for quick and easy ways to receive vitamin D [6] without overdoing it, getting outside in the sun is a surefire bet. Additionally, foods like fortified orange juice, milk, and cereals can help. Or turn to food sources that naturally contain vitamin D like salmon, eggs, and tuna.