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You’re at Costco, pushing your cart past the eyeglasses and electronics, past the seasonal section, still stocked with live plants in the front — a whole optimistic garden of trees and flowers in their plastic posts, waiting for people who are absolutely sure that this is the year their garden won’t die.
And just beyond that? The protein section.
Powders and shakes and bars and jerky and meat sticks and nuts and more — row upon row upon row. Dozens of Robert Irvines smile at you from packages of FitCrunch Bars, their arms doing what arms do when you’re Robert Irvine.
The whole thing feels like a trend that’s been building for so long, it no longer seems like a trend. There’s been Atkins. Mediterranean. Keto and paleo. Wise Traditions and carnivore and whatever comes next. Protein’s “moment” has lasted for about 30 years now.
Of course, protein itself is nothing new. It’s one of the most fundamental building materials in the human body, essential for repairing tissue, producing enzymes and hormones, supporting immune function, and maintaining the structural integrity of — well, basically, everything.
Despite the marketing, protein isn’t a performance supplement. It’s infrastructure. And some of its most important work happens in your mouth.
All of the structures that help hold your teeth in place — the gums, the periodontal ligament, even the surrounding bone — depend on protein, particularly in the form of collagen. Collagen is the scaffolding that holds it all together.
- It maintains the density and resilience of your gum tissue.
- It supports the bone matrix that keeps your teeth anchored.
- It drives the healing process after any kind of dental procedure.
If you don’t eat enough protein, that collagen scaffolding can weaken. Gum tissue becomes more vulnerable. Healing takes longer to happen. The mouth keeps a pretty honest record of what you’ve been eating.
Protein is what your body uses to make its own collagen — more specifically, amino acids from the protein you eat. Like most of the important things your body does, that process doesn’t run on just one nutrient. It needs cofactors such as enzymes, phytochemicals, or other nutrients to get the job done. Calcium, for instance, doesn’t get absorbed well without vitamin D3 and may deposit in places such as arterial walls instead of the teeth and bones without vitamin K2.
In the case of collagen production, the most necessary cofactor is vitamin C. If you don’t have enough of it, your body can’t build new collagen, no matter how much protein you’re taking in.
This is why whole food sources tend to be the best option for getting the nutrients you need compared to heavily processed ones. A piece of grilled salmon with roasted veg delivers both protein and its cofactors together — in forms that the body recognizes and in combinations that have worked for thousands of years.
A FitCrunch Bar can approximate that. But approximating isn’t the same thing.
So how much protein is enough? The official RDA of 0.8 grams per kilogram of body weight each day is widely understood by researchers as a floor, not a target. It’s the minimum needed to prevent deficiency, not the amount needed to support collagen synthesis, tissue repair, and such.
Many researchers now suggest that intakes closer to 1.2 to 1.6 grams per kilogram may better support tissue repair and maintenance, especially in active adults and older individuals. For a 150-pound person, that’s roughly 80 to 110 grams of protein each day. Someone on a keto or carnivore diet may consume much more than that, up to 150 grams or even more.
While there’s nothing inherently alarming about eating such a large amount of protein, it can lead to some less-than-great consequences for your oral health.
For one, high protein diets can contribute to dry mouth – especially if a lot of it comes from ultra-processed products. At first, you might notice a sticky, slightly uncomfortable feeling. Over time, you may find yourself more prone to cavities and gum disease. Normal saliva flow protects your teeth, washing away food debris and delivering minerals to the enamel to replace those lost through daily wear.
A displacement problem can also arise. When you load up with more protein, other foods tend to get crowded out — usually vegetables, fruit, and fiber. Yet that’s where your body can get the vitamin C it needs to make collagen, the fiber that supports a healthy oral microbiome, and other cofactors that make the whole nutritional system work.
But if what the protein displaces are refined carbohydrates — breads, pastas, sugary snacks — that’s actually good news for your mouth. Those types of carbs contribute to oral acidity, and acidity means greater vulnerability to decay on gum disease. Swapping them for protein is a trade worth making.
And that points to something that’s easily overlooked: While brushing, flossing, and regular dental visits are important, what you eat is a critical factor in oral health or disease. What you eat determines whether the structures in your mouth get the raw materials they need to maintain themselves or go without.
No, you don’t have to go counting grams or totally overhauling your diet in one go. Start by paying attention to what’s actually on your plate.
