If you've started paying more attention to collagen, you may have wondered whether you can simply get everything you need from your diet.
It's a very sensible question. After all, we often hear that the best way to look after our health is to eat a varied, balanced diet rather than relying on supplements.
So, what foods contain collagen? Can you have a collagen-rich diet? And do you actually need a collagen supplement? The answer is a little more nuanced than you might expect.
What Foods Contain Collagen?
Let's start with the obvious one. Collagen is an animal protein, so foods containing connective tissue can naturally provide collagen.
Some of the richest dietary sources include:
- Bone broth – made by simmering animal bones and connective tissues for an extended period.
- Fish skin – particularly rich in collagen.
- Chicken skin and connective tissue
- Pork skin
- Certain cuts of meat containing connective tissue
Bone broth is probably the food most commonly associated with collagen.
A properly prepared bone broth can contain collagen-derived proteins and amino acids. However, the amount of collagen you get can varies considerably depending on how it is made, the ingredients used and the cooking process.
The honest answer is: it’s not a need, it’s a bonus.
Collagen supplements are supplements, not an essential nutrient category.
If you eat a varied diet containing adequate protein, fruit and vegetables, you're already providing your body with many of the nutrients involved in normal collagen production.
However, some people choose to supplement because they want a convenient, consistent source of collagen peptides as part of their approach to healthy ageing.
That's why I prefer to describe collagen supplements as an optional addition to a healthy lifestyle, rather than something everyone must take.
Collagen Food vs Collagen Supplements
So which is better? There isn't a simple winner.
A collagen-rich diet can provide:
Protein and amino acids
These provide the raw materials your body uses to make its own proteins.
Vitamin C and other nutrients
Fruit and vegetables provide vitamin C and a wide range of other micronutrients important for overall health.
Natural sources of collagen
Foods such as fish skin and bone broth contain collagen or collagen-derived proteins.
Collagen supplements provide:
A concentrated source of collagen peptides
Hydrolysed collagen is broken down into smaller peptides, making it convenient to consume.
Consistency
You know approximately how much collagen you're consuming each day.
Convenience
There's no need to spend hours preparing appropriate food dishes.
For someone with a busy lifestyle, that last point can be the most important. And This Is Where Convenience Matters
I often tell patients that the best healthy habit is the one you can actually maintain. You might have every intention of making bone broth regularly, eating perfectly balanced meals and preparing everything from scratch.
But then real life inevitably gets in the way. Work gets busy. You're travelling. You're exercising. You're looking after family. Sometimes you simply don't have the time.
A ready-to-drink collagen product can make adding collagen to your routine considerably easier.
That's one of the reasons I love the concept behind GEN Collagen: it's designed to make collagen supplementation straightforward, without requiring you to change your entire diet.
My Advice as a GP
Don't think of collagen as food versus supplements. Think about the bigger picture.
Start with a varied diet containing adequate protein, plenty of fruit and vegetables and good sources of vitamin C. Stay active, don't smoke and protect your skin from excessive UV exposure.
Those fundamentals matter far more than any single supplement.
Then, if you'd like to add collagen peptides to your routine, a good-quality supplement can be a convenient way of doing so.
And if you're someone who regularly makes and enjoys bone broth or eats collagen-rich foods such as fish skin, you may already be consuming dietary collagen.
The important thing is understanding what you're getting from your diet and what a supplement is actually adding.
The Bottom Line
What foods contain collagen? Bone broth, fish skin, chicken skin, pork skin and other connective-tissue-rich animal foods are natural sources.
What helps your body make collagen? Adequate protein and nutrients including vitamin C are important for normal collagen formation.
Does collagen decrease with age? Our natural collagen production and the structure of our collagen change as we age, and factors such as UV exposure can accelerate collagen breakdown.
Do you need a collagen supplement? A balanced diet supports your body's normal collagen production. However, a collagen supplement can provide a convenient and consistent source of collagen peptides if you choose to include one in your routine.
Ultimately, there is no magic food or supplement that stops ageing.
But good nutrition, sensible lifestyle choices and, where appropriate, targeted supplementation (with products like GEN collagen) can all form part of a sensible approach to supporting your health as you get older.
Dr B x