Abstract: (−)-Hydroxycitrate (HCA) supplementation constitutes a novel means of reducing the loss in bone mineral content such as that usually found in osteoporosis and the related loss in bone quality (protection against the corticoid-induced loss in non-mineral bone components). Similarly, HCA supplementation constitutes a novel means of reducing stress-induced bone loss and of reducing other forms of bone loss induced by glucocorticoid-related mechanisms. The discovery that HCA has bone loss-moderating effects allows for the creation of novel and more efficacious approaches to preventing osteoporosis and for maintaining normal bone metabolic functioning even in the face of diet and exercise habits which are less than ideal and in the face of chronic stress. Furthermore, this discovery makes possible the development of adjuvant modalities which can be used to improve the results realized through the employment of conventional anti-osteoporosis/bone protective remedies.