People with hypertension or cardiovascular issues: Some supplements contain sodium ... cardiovascular medications. People with bleeding disorders or on blood thinners: Glucosamine can increase ...

Another problem: Dietary supplements aren’t regulated by the Food and Drug Administration ... may contain high levels of mercury or vitamin A, which could be toxic.” Glucosamine and ...

All of the tested products contain a combination of glucosamine salt (either hydrochloride ... but they may interact with some drugs, particularly blood thinners. So check with your doctor first ...