If you’re spending money on collagen powder every month, I need you to read this.
And if someone you love is drinking collagen peptides every morning hoping it’ll strengthen their gums, their joints, their skin — please forward them this.
Collagen is a protein. When you swallow collagen peptides, your digestive enzymes break them down into their individual amino acids — primarily glycine, proline, and hydroxyproline.
Those amino acids enter your bloodstream, join the general amino acid pool, and get used wherever your body needs protein at that moment.
Unfortunately, your liver doesn’t receive a memo that says “hey, those glycine molecules came from a collagen powder, please route them directly to the gums.”
The bottleneck in collagen production isn’t amino acids. Most people eating a reasonably varied diet are not deficient in glycine, proline, or lysine — you get them from meat, fish, eggs, legumes, and dairy.
The bottleneck is the machinery that assembles collagen — and that machinery requires specific cofactors to function.
Here’s what I actually take every single day instead…
Zinc — The Supplement I Never Skip
Your periodontal ligament is a thin layer of fibrous connective tissue — roughly 0.1 to 0.4mm wide — that suspends each tooth in its socket. It’s not a rigid attachment. It’s a shock absorber.
A sensory organ — it contains Ruffini endings that help you sense biting force. (This is exactly why a dental implant never quite feels the same as your natural tooth. An implant has no PDL. No Ruffini endings. No proprioception. It’s anchored directly to bone. Functional, yes. But not the same.) A nutrient highway. And it is approximately 70% collagen — primarily Types I and III.
This collagen turns over roughly every 15–20 days. That’s extraordinary. Your PDL is constantly remaking itself. And zinc is essential to keeping that process in balance.
Zinc plays a dual role in collagen biology. It’s required for the matrix metalloproteinases (MMPs) — the enzymes that break down old, damaged collagen so new collagen can replace it. And it supports the activity of RNA polymerase, which is required for collagen gene transcription.
Here’s a quick self-assessment: have you ever had an extraction, gum treatment, or oral surgery and been surprised by how slowly you healed? Or had a dentist comment on it? Zinc status is one of the most underappreciated reasons why — and it’s almost never tested.
The dentin matrix — the living structure inside your teeth beneath the enamel — is also primarily Type I collagen, accounting for about 30% of its dry weight.
Odontoblasts at the pulp-dentin border are constantly producing new dentin throughout your life, and this process requires the same collagen-synthesis machinery.
→ Here’s the zinc I take every day
(If you take high doses of zinc, make sure to balance with copper — they compete for absorption.)
And Eat Your Bell Pepper
Vitamin C is the other essential cofactor — it powers both prolyl hydroxylase and lysyl hydroxylase, the two enzymes that add hydroxyl groups to proline and lysine residues on raw collagen strands. Without adequate vitamin C, the collagen triple helix cannot form properly. It’s structurally unstable. It falls apart.
The first place this shows up is your gums. Swelling. Bleeding. Tissue pulling away from your teeth. The periodontal ligament degrades. We’ve known this since the 18th century — it’s called scurvy.
Subclinical vitamin C deficiency is far more common than most people realize, and it doesn’t announce itself with dramatic symptoms. It quietly impairs your collagen synthesis, month after month — making your gums a little more fragile, a little more prone to inflammation, a little less resilient.
One red bell pepper has roughly 190mg of vitamin C. A cup of strawberries gets you most of the way there. Eat these daily — not occasionally. 250–500mg of liposomal or food-sourced vitamin C fills the gap.
A Note for Plant-Based and Vegetarian Readers
If you eat animal protein, you are almost certainly not deficient in the amino acids collagen requires. Meat, fish, eggs, and dairy provide complete amino acid profiles with plenty of glycine, proline, and lysine. For you, the building blocks are not the bottleneck. The cofactors are. Full stop.
If you eat a plant-based or vegetarian diet, this changes things. The specific amino acids collagen demands — glycine, proline, hydroxyproline — are particularly low in most plant sources, and plant proteins don’t deliver them in the ratios your body needs for collagen synthesis. You’re facing a two-front challenge: potentially inadequate building blocks and potentially inadequate cofactors.
In this case, supplementing with a complete amino acid profile — or being very deliberate about combining protein sources — becomes genuinely important alongside the cofactors above. This is the one scenario where collagen peptides or a glycine/proline supplement might actually offer real value.
My Must-Haves for Collagen
If you want resilient gums, strong periodontal attachment, and healthy dentin, the answer isn’t swallowing pre-made collagen. It’s building it — continuously, every single day — with the cofactors your body actually needs.
That’s my collagen strategy. Zinc every single day. Vitamin C. Save the $60 a month and spend it on the food and supplements that actually move the needle.
So the next time someone hands you a collagen scoop, smile and ask them if they had their bell pepper today.
