Collagen is one of the most important structural proteins of the body, contributing to the formation of skin, hair, nails, bones and cartilage. When passing the age of 25, the amount of natural collagen begins to decrease, making the skin less firm, wrinkles appear, and hair and nails become weaker. This is also the reason why collagen supplement products are increasingly popular, especially among young people.
According to Dr. Khushboo Jha, Head of Dermatology at Metro Hospital and founder of One Skin Clinic (India), collagen decline with age is the main reason why many people turn to collagen supplements to support skin care and health.
Currently, this supplement is commonly sold in the form of oral powder, capsules or solutions. The ingredients are usually taken from beef, chicken or fish, then processed to break down into tiny particles that help the body absorb them more easily. Although it is used by many people, using this product can still cause some unwanted effects.
One of the common side effects is digestive disorders. Some people may experience bloating, abdominal distension, constipation or diarrhea, especially when using high doses or powder form. For people with a sensitive digestive system, start with low doses and take them with meals to reduce discomfort.
Collagen derived from fish sometimes causes fishy or unpleasant odors even after being flavored. This is harmless but can make it difficult for users to maintain long-term use.
Allergic reactions are also a risk to watch out for. People allergic to fish or seafood should not use sea collagen. Symptoms may include urticaria, itching, swollen lips or shortness of breath. In this case, stop using and see a doctor immediately.
Some rare people may experience headaches or fatigue after using collagen. The cause may be related to additives or sweeteners in the product, rather than collagen itself.
In addition, some uncontrolled products may contain heavy metals such as lead or mercury.
Therefore, consumers should choose products from reputable brands, tested by third parties. In theory, the high content of hydroxyproline in collagen can increase the risk of kidney stones in people with sensitive constitutions, although current evidence is limited.
Pregnant women, breastfeeding women, people with autoimmune diseases or those taking medication should consult a doctor before supplementing with collagen.
Collagen can bring some benefits to skin and health, but it is not a suitable solution for everyone. Understanding the possible side effects and using it according to instructions will help you consider carefully before deciding to supplement.
