When shopping for an herbal supplement, it's important to verify which parts of the plant were used in its production. Different components can produce different effects, some of which can harm your health. For example, research shows that while the roots of the herb kava seem to be safe, its stem peelings and leaves may contain compounds that could be toxic to the liver. Talking with your doctor or herbalist can help you determine which plant parts to look for.
In addition to diet, exercise and other lifestyle factors can also play an important role in bone health. Smoking and drinking too much alcohol can increase your chances of developing osteoporosis, while weight-bearing exercise (such as walking, dancing, yoga, or lifting weights) can lower your risk. Strength or resistance training—using machines, free weights, elastic bands, or your own body weight—can be especially effective in helping to prevent loss of bone mass as you age.