Plant-based collagen does not contain actual collagen, yet they contain the amino acids needed to make collagen and vitamin C. However, it depends on your body's ability to produce collagen, which can be hindered by smoking, exposure to toxins, chronic illness, and a sedentary lifestyle.

You can also experience digestive problems as a side effect of taking collagen. Some of the symptoms you may display include diarrhea, constipation, and heartburn, alongside feeling bloated and having a reduced appetite. Chemical additives, particularly in supplements, greatly contribute to these reactions.