Yes, you can take more collagen than you need. Collagen is a protein, not a drug, so “overdose” is not usually the right word. But taking very high amounts can still cause digestive discomfort and may add unnecessary calories.
A sensible daily amount for most adults is usually between 2.5g and 15g per day, and you need to adjust the amount to your personal circumstances.
The right amount depends on why you are taking it, your diet, the product serving size and how sensitive your digestion is. It is worth being more careful if you have kidney disease, liver disease, gout, a high-protein diet, allergies to meat or fish, or if you take several collagen products at once.
For help choosing a formula, see our guide to the best collagen powders in the UK.
For most adults, 2.5g to 15g of collagen per day is a sensible range. Many beauty formulas sit at the lower end, while joint and connective tissue formulas often use a higher serving.
The key is not to keep adding more because you want faster results. Collagen works best as a steady daily habit, alongside enough protein, vitamin C, minerals, sleep and movement.
If you use more than one collagen product, add the serving sizes together. For example, a 7.5g collagen powder plus collagen capsules or a collagen drink may take you higher than you realise.
The most common signs of taking more collagen than suits you are digestive and may include:
These side effects do not always mean collagen is “bad” for you. They may simply mean the serving is too large, the product does not suit you, or your digestion needs a gentler start.
A practical approach is to reduce the serving for a week, take it with food, and build up slowly only if it feels comfortable.
Even if you don’t experience these symptoms, you may do so if you take more than the recommended daily serving. The more collagen you take, the more likely you may experience digestive discomfort.
Healthy adults usually tolerate collagen well when they stay within the suggested serving size. The concern is high protein intake overall, especially for someone who already has kidney disease, liver disease, gout, or has been told to limit protein.
Collagen is broken down into amino acids, like other proteins. If you take large extra servings, those amino acids still need to be processed by the body. For most healthy adults this is not usually a problem, but it may matter if your kidneys or liver are already under medical strain.
If you have kidney disease, liver disease, gout, or you have been told to follow a low-protein diet, speak to a qualified practitioner before taking high-dose collagen. This is especially important if you already eat a high-protein diet or use protein powders.
Collagen itself does not automatically cause weight gain. But it is still a source of protein, and protein still contributes to your total daily intake.
A normal serving is unlikely to make much difference. The issue comes when someone takes large servings every day, especially alongside protein powders, high-calorie drinks or a diet that already provides more energy than they use.
So the practical answer is simple: stay close to the serving size, avoid doubling up without checking the total, and choose a product that fits your routine rather than taking more for the sake of it.
A good collagen routine is simple:
Collagen is not a quick fix. It works best as part of a steady routine that also includes enough protein, colourful foods, good sleep and regular movement.
Collagen is a protein found in the human body. It has many essential roles, including helping to provide cushioning and lubrication in the joints and adding flexible support to the blood vessels.
Perhaps, however, it’s most well-known for its role in adding structure and plumpness to the skin. Collagen fibres sit underneath the upper layers, providing support and giving the appearance of youthful, lifted skin. Surprisingly, around the age of 25, we begin to lose the ability to manufacture collagen, meaning that our reserves gradually become depleted.
As we journey through our 30s, 40s and beyond, the result of dwindling collagen is plain to see – we develop fine lines and wrinkles, and our skin, particularly that of our face, begins to sag. We might also notice uncomfortable, stiff joints as the collagen depletes.
For this reason, many people choose to take collagen supplements to aid their natural collagen production. But do these supplements actually work? The benefits of collagen supplements include firmer, more lifted skin, a more youthful complexion, and better lubricated, more mobile, and less painful joints.
Collagen supplements have clear and well-researched benefits. Taking them can lead to younger-looking, less wrinkled, and more lifted skin, as well as more mobile, less stiff joints.
Many studies conclude that the skin benefits could be noticeable in just eight weeks. Some suggest that results could be seen even sooner, with one reporting a noticeable reduction in skin wrinkles after four weeks.
Consuming 2.5 – 15g of collagen in supplement form is generally considered beneficial per day. Numerous studies have found collagen supplements safe, with no known severe or dangerous side effects. But it shouldn’t be assumed that the more collagen we take, the better the results.
Collagen is a protein, and most healthy adults require around 45 - 55g of protein each day (more if we’re exercising or training to an exceptionally high intensity). This equates to around two portions of protein-rich meat, nuts, or tofu per day – one portion fitting roughly into the palm of your hand.
Therefore, taking up to 15g of collagen supplements is unlikely to push us much beyond this. However, the positive benefits will only increase if we take up to 15g daily; if we take more, we may experience some side effects.
So, can you take too much collagen? Yes, in the everyday sense that you can take more than your body needs. For most people, the useful range is 2.5g to 15g per day. More is unlikely to bring better results and may be harder on digestion.
To see if collagen supplements benefit you, take your chosen form of collagen for at least 12 weeks. If you have a sensitive stomach, start with a low intake before gradually increasing.
If you want to learn more about the collagen products we stock, check out our collection or contact us for a personal recommendation.
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