Doctor's Best® 340mg Strontium Bone Maker® Dietary Supplements Veggie Caps - 60. Science-Based nutrition™. Dietary supplement. Bone health maintenance*. Suitable for vegetarians. Contains nothing other than listed ingredients. Strontium is a naturally occurring mineral present in water and food. Trace amounts of strontium are found in the human skeleton. Strontium has an affinity for bone and is taken up at the bone matrix crystal surface. The influence of strontium on bone metabolism has been researched since the 1950's. Studies indicate that strontium positively affects bone metabolism to promote bone formation rather than bone resorption, helping maintain bone density*. Helps maintain strong, healthy bones*. Non-GMO and gluten free. (800) 777-2474. www.drbvitamins.com.