help to prevent calcium deficiency and osteoporosis There is no evidence that extra calcium prevents osteoporosis; exercise - with adequate calcium intake - prevents bone loss. Runners who eat few or no dairy products may benefit from supplements
No food sources; glucosamine is produced in the body from glucose and glutamine Supports the health, flexibility and functions of the joints Inconclusive but promisingInformation obtained from: Runner's World archives, Boots, Solgar Vitamins, the British
