Life Extension Vitamin D3 175 mcg (7000 IU), Immune System Support, Bone Health, Brain Performance, Gluten-Free, Non-GMO, Once Daily, Two-Month Supply, 60 softgels

Customers find this vitamin D supplement to be of excellent quality, with one noting its superb pill composition, and they appreciate its health benefits, with one mentioning it helped raise their vitamin D levels. The supplement comes in tiny capsules that are easy to swallow, and customers find it effective and good value for money. However, several customers report issues with clumping, noting that the pills arrive stuck together.