Short answer: marine collagen is well tolerated by most people. The side effects reported are usually mild: bloating, a feeling of fullness, heartburn or an aftertaste. The real risk is for people with a fish or seafood allergy, who should not take it. If you are pregnant, breastfeeding, on medication or have a history of kidney stones, ask your doctor first.
Common, mild side effects
Digestive discomfort
A small number of people notice bloating, fullness or mild heartburn, especially in the first week or when taking collagen on an empty stomach. Taking it with food or splitting the serving usually settles this.
Taste and aftertaste
Unflavoured marine collagen can have a faint fishy note, more noticeable in plain water. Mixing it into coffee, juice or a smoothie hides it. Flavoured versions are made for water.
Who should avoid marine collagen
People with a fish or seafood allergy
Marine collagen is made from fish skin and scales. Anyone with a fish allergy should avoid it, since reactions can range from itching and rashes to severe allergic reactions. If you get hives, swelling or trouble breathing after taking it, stop and get medical help.
Vegetarians and vegans
It is an animal product. There is no plant source of collagen.
When to check with a doctor first
Speak to your doctor before starting if you are pregnant or breastfeeding, on prescribed medication, managing a kidney or liver condition, or have had kidney stones. Collagen contains hydroxyproline, which the body can convert to oxalate, so doctors sometimes advise caution for people prone to oxalate stones. There is little research on collagen during pregnancy.
Can you take too much?
Extra scoops do not work faster. Stick to the serving on the pack. If you also take protein powder, count collagen as part of your daily protein.
Quality matters
Because marine collagen comes from fish, sourcing and testing matter. Look for a brand that names its fish source, states that the collagen is hydrolyzed, and makes batch test reports available. Check the label for added sugar and sweeteners in flavoured versions.
How NewYou collagen is made
NewYou marine collagen powders are hydrolyzed collagen peptides from fish skin. Plain Collagen Essentials has nothing added. How to take collagen covers serving size and timing, and what to avoid when taking collagen covers common mistakes.
This article is general information, not medical advice. NewYou products are food supplements and are not intended to diagnose, treat, cure or prevent any disease.
