Very important to immune system.
My vitamin D was dangerously low about 4 years ago. I had to take a prescription Vitamin D for about 6 months then switched to 5000iu daily. Nice to have 6 month supply in 1 bottle. Small easy to swallow. During Winter it can be difficult to get enough Sunlight to keep levels up. Now during the Pandemic even more you want your immune system to be in good shape.
Rating: 5 stars