325 MCG (13,000 IU) VITAMIN D3
Maximum D3® is a high-quality vitamin D3 supplement that helps support bone health, calcium absorption, and immune system function.
Maximum D3® is expected to maintain adequate blood levels of vitamin D when taken once a week by adults.
Maximum D3® was the first high-dose vitamin D3 supplement marketed in the United States. It was designed by Dr. Grote who strongly believes in the benefits of vitamin D. He was frustrated that high-quality supplements were not available to his patients, so he carefully formulated Maximum D3® to have superior quality and consistency.
3 Main Way to Obtain Vitamin D →
![](http://maximumd3.com/cdn/shop/files/Sun_exposure_limitations4_02febe10-f88f-4bdb-a938-d724b55cb976.png?v=1701288544&width=1509)
The sun is the superior source of vitamin D, but sun exposure may be limited by lifestyle, geography, and the season.
Vitamin D deficiency has been shown to be 2.42 times more prevalent in winter than summer.
One capsule of Maximum D3® contains approximately the same amount of vitamin D a light-skinned person would make if exposed to summer sun for a few hours.
Maximum D3 Benefits
![](http://maximumd3.com/cdn/shop/files/promo-single-dose.png?crop=center&height=101&v=1695195812&width=100)
Conveniently Once a Week
![](http://maximumd3.com/cdn/shop/files/promo-usa-1.png?crop=center&height=101&v=1695195830&width=100)
Made in the U.S.A.
![](http://maximumd3.com/cdn/shop/files/promo-quality-ingredients-1.png?crop=center&height=101&v=1695195848&width=100)
High-Quality Ingredients
![](http://maximumd3.com/cdn/shop/files/promo-gluten-free-1.png?crop=center&height=101&v=1695195867&width=100)
Gluten Free
![](http://maximumd3.com/cdn/shop/files/promo-gmo-free-1.png?crop=center&height=101&v=1695195893&width=100)
Non-GMO
![](http://maximumd3.com/cdn/shop/files/box7.jpg?v=1695197457&width=3210)
DISCOVER HEALTH BENEFITS
Numerous research studies link optimal vitamin D levels to better health benefits.