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Collagen in Coffee: Does Heat Ruin It?

· 4 min read

Smiling woman holding a light-blue mug in a sunny kitchen, enjoying a morning cup of coffee

My morning coffee is non-negotiable. So when I started adding collagen, the first thing I wondered was whether pouring it into a hot cup was a waste. Does heat ruin collagen in coffee? I read what Cleveland Clinic says about collagen peptides and looked at a 2025 study that tested collagen in actual coffee. I'm not a doctor. Here's what I found.

The coffee habit

If you put collagen in your coffee, you're in good company. Cleveland Clinic notes that collagen peptides are everywhere right now, stirred into coffee and blended into smoothies.

Vogue calls collagen coffees and creamers "all the rage." The appeal is simple. Most of us already have a coffee habit, so adding collagen to it is easy to remember.

Vogue is also upfront that many collagen studies are small or industry-funded. Registered dietitian Amy Shapiro tells them it's about "consistency and subtle changes not overnight transformations." I appreciated that honesty.

Still, the habit itself is a real plus. A supplement you actually take every day is more useful than one sitting in the back of the cupboard.

What heat does (and doesn't) do

Hand stirring a mug of hot coffee with a teaspoon
Collagen peptides are already broken down into small pieces, so stirring them into a hot cup is fine.

Here's the key thing to understand. The collagen in most powders isn't the same as the collagen in your body. It has already been processed into much smaller pieces.

Cleveland Clinic explains that collagen peptides, also called hydrolyzed collagen or collagen hydrolysate, are broken-down forms of collagen that are easy for your body to digest and absorb. In other words, the "breaking down" has already happened before the powder reaches your kitchen.

So what about a hot cup? A 2025 study in Food Research International tested it in people. Healthy volunteers took collagen hydrolysate dissolved in either water or coffee. Researchers then tracked what showed up in their blood over six hours.

The result: the main collagen peptides they measured were absorbed in a similar way whether people had them in coffee or water. Some individual amino acids did rise differently with coffee, so coffee isn't exactly the same as water. But the peptides held up.

The bottom line on heat: for collagen peptides, your normal cup of coffee isn't something to worry about.

Creamer vs. peptides

There are two common ways to get collagen into your cup.

Plain collagen peptides are just collagen. Unflavored versions dissolve into coffee, tea, smoothies or even water without changing much.

A collagen creamer does two jobs at once. It usually combines collagen with other ingredients, like fats, flavor and a sweetener, so it lightens your coffee too. That makes it a handy swap if you already use creamer every morning.

Neither one is "right." It comes down to how you like your coffee:

  • You drink it black or with milk? Plain peptides may fit best.
  • You always add creamer? A collagen creamer can replace the one you use now.

Either way, read the label. Look at the grams of collagen or protein per serving, and how big a serving is.

Watch the sugar

Top-down view of a small cup of coffee on a saucer on a dark wooden table
Whatever you add to your cup, check the label for added sugars. They add up over a day.

This is the part that's easy to miss. Some creamers and flavored coffee drinks carry a lot of added sugar.

The FDA says the Dietary Guidelines recommend keeping calories from added sugars under 10 percent of your day. On a 2,000-calorie diet, that's about 50 grams of added sugars a day. The FDA also lists sugar-sweetened drinks among the main sources of added sugars for most Americans.

Checking is easy. Find the Added Sugars line on the Nutrition Facts label. It shows grams per serving. If you have a couple of cups a day, multiply it out.

A few simple habits help:

  • Measure your serving. A heavy pour adds up quickly.
  • Mind the extras. Flavored syrups and whipped toppings add sugar fast.
  • Read the serving size. The sugar number is per serving, which may be smaller than what you actually pour.
  • Count the whole day. Your coffee is only one part. Sweet drinks, snacks and desserts all count toward the same 50 grams.

The bottom line

Heat isn't a reason to skip collagen in your coffee. Collagen peptides are already broken down, and a 2025 study found they were absorbed about the same in coffee as in water. Choose peptides or a creamer based on how you drink your coffee, read the label for grams and added sugars, and stick with it daily. As always, check with your doctor if you have a health condition or take medication.

Questions

Does hot coffee destroy collagen?

For collagen peptides, there's no good reason to worry. They're already broken down into small pieces. A 2025 study found the key collagen peptides were absorbed about the same whether people drank them in coffee or water.

Can I put collagen in tea?

Yes. Unflavored collagen peptides mix into most hot or cold drinks, including tea, smoothies and water.

Is a collagen creamer the same as collagen peptides?

Not quite. A collagen creamer usually adds other ingredients, like fats, flavor and sweeteners, so it works as a creamer. Plain peptides are just collagen. Read the label to see what's in each.

Sources

  1. What Are Collagen Peptides? And Do They Work? — Cleveland Clinic, June 8, 2026
  2. Unravelling the bioavailability of amino acids and bioactive peptides from collagen hydrolysate in coffee in healthy volunteers (Virgilio et al.) — Food Research International, April 19, 2025
  3. Why Your Morning Coffee—Or Matcha!—Needs Collagen — Vogue (Brianna Peters), April 9, 2026
  4. Added Sugars on the Nutrition Facts Label — U.S. Food and Drug Administration, March 4, 2026

Photos: Letícia Alvares, Charith Kodagoda and Engin Eşsiz via Pexels

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