There is a slight chance, of side effects with collagen supplementation, including: Constipation Diarrhea Reduction of appetite Mild headaches Difficulty sleeping Bloating, heavy feeling, or fullness in the stomach Heartburn Rashes Hypercalcemia (abnormally high calcium levels) Irritability, anxiety, and depression Rarely, collagen supplements can slightly increase the risk of developing kidney stones
Taking fertility tablets isnt something only women should consider, certain supplements have been shown to increase sperm quality and motility also
As always, it's important to discuss all medications, supplements, and health conditions with your healthcare provider before starting any new medication
Davies, K
Cattaneo M, Franchi F, Zighetti ML, Maritnelli I, Asti D, and Mannucci PM (1998)