Last year, U.S. consumers spent some $721 million on glucosamine and chondroitin ... fish oil can cause side effects, including upset stomach, diarrhea, and a tendency to burp,” says Consumer ...

Some users have reported experiencing side effects such as headaches and upset stomachs. Additionally, this supplement can be more expensive compared to other glucosamine sulfate supplements on ...

While the research on most supplements for joint pain is mixed, and the FDA doesn’t regulate supplements, fish oil, glucosamine ... Its pain-relieving effects are attributed to a chemical ...