There is no need to avoid certain foods, beverages, or activities while taking glucosamine.
If you are allergic to shellfish or iodine, you should not take glucosamine supplements that come from natural sources. Instead you should look for products containing glucosamine that are manufactured in a laboratory.
Due to a lack of data on the potentially harmful effects of glucosamine on certain populations, you should not attempt to get pregnant or breastfeed while taking glucosamine.
Surgical or dental procedures should be avoided while on glucosamine because of the increased risk of bleeding associated with this supplement. If necessary, glucosamine can be discontinued for two weeks prior to the scheduled procedure.
If possible, you should not take herbs, supplements, or other medications that may interact with glucosamine. These include medicines that may increase the side effects of glucosamine or other drugs (such as medications to control diabetes, prevent blood clots, or remove excess fluid from the body) and that may become less effective when used with glucosamine (such as medications to treat pain or fight cancer). Chitosan, a supplement used for weight loss, may decrease the body's absorption of glucosamine and should likewise be avoided.
If you are unable to stop taking certain medications, you may need to discuss alternative treatment options or more frequent monitoring with your healthcare provider. For example, if you take medicines to control diabetes you may need to test your blood sugars more frequently. Similarly, if you take drugs such as warfarin to prevent blood clots, your doctor should follow you closely for side effects.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.