Doctor Answers (1) on Side effects
I can understand your concern.
Many people are taking collagen supplements.
It supposedly gives you a better and firmer skin, increases bone strength and better hair and nails.
The most common side effects are
1. Some people have a bad taste in their mouth for about an hour or so.
2. Decreased appetite in some.
3. Allergies if someone is sensitive.
I havent come across cancer as a side effect.
If you are scared then better not take.
Dr. Anil kumar jain.