: Many standard multivitamin/mineral supplements already contain chromium (typically 35–120 mcg), so check your current vitamins before buying a separate supplement. Amazon.com: Chromium Mineral Supplements

: Offers a vast selection of brands like NOW Foods , Thorne , and Pure Encapsulations . You can find various dosages ranging from 200 mcg to 1000 mcg.

: Provides local pickup and same-day delivery for their store brand chromium and Nature's Bounty. They frequently offer "Buy 1, Get 1 Free" deals.