Good substitute for the original. I used regular glucosamine for years, but developed shrimp allergies, probably from taking them, so I was delighted to find these work as well. I have to take them about every 6 hours, sometimes 4 if I'm really stiff and sore.
Reviewed in the United States on June 12, 2018. Amazon.com
This stuff works for those with shellfish allergies! I really like this brand of glucosamine. Only two pills a day and vegan, which is great because I have an allergy to shellfish and typically shellfish is used in other glucosamine supplements. I suffer with knee pain if I don't take glucosamine consistently, and I can say that this actually makes my knees feel stronger and less crack. Highly recommended!
Reviewed in the United States on April 21, 2018. Amazon.com
This product bypasses the shellfish allergy problem! Long ago, a friend recommended I try glucosamine for joint pain. When I tried it, it gave me excruciating joint pain - the opposite of what it was supposed to do. I never tried it again. I did not know at the time that it was derived from shellfish. After finding out that the glucosamine I took probably came from shellfish, a light bulb went on in my head. I have known since childhood that I am allergic to shellfish. If the glucosamine tends to collect in joints, and is carrying the shellfish allergen, then it would not be surprising if it caused (rather than relieved) severe joint pain.
This product quickly relieved my joint pain to a large extent within days.
Reviewed in the United States on August 3, 2019. Amazon.com