Gelatin vs. Collagen: What's the Difference?

Written by Krista Bugden
Medically Reviewed by Felicia Newell, M.S., RDN

September 13, 2023

With similar nutritional profiles, the main difference between gelatin vs. collagen is that gelatin only dissolves in hot liquids, whereas collagen dissolves in both hot and cold liquids.

This means that the one you incorporate into your lifestyle often comes down to a personal preference.

Keep reading to learn more about the similarities and differences between gelatin vs. collagen, their nutritional profiles, health benefits, and more. 

Similarities & Differences Between Collagen & Gelatin

Gelatin is typically derived from collagen by heating it. The biggest difference between the two is that collagen dissolves in hot or cold liquids. Meanwhile, gelatin only dissolves in hot liquids. Gelatin is further used as a thickener for foods, alongside being a nutritional supplement, whereas collagen is not.

Here’s a chart showing the main differences and similarities…

Collagen :
Process :Fully hydrolyzed
Process :Partially hydrolyzed
Forms :Powder, liquid, capsules
Forms :Powder, sheet
Uses :As a nutritional supplement
Uses :As a nutritional supplement and to thicken or gel foods
Flavor :Flavorless
Flavor :Flavorless
Gelling Ability :No
Gelling Ability :Yes
Thickening Ability :No
Thickening Ability :Yes

Collagen can be either fully hydrolyzed or partially hydrolyzed. If partially hydrolyzed, it’s considered gelatin. Typically, gelatin is derived from collagen by heating it. However, they share a very similar nutritional profile and are both abundant in the amino acid glycine (2).

A hand pouring a scoop of NativePath Original Collagen peptides into a coffee mug with a French Press in the background.

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Collagen is the most abundant protein in your body and essential for the health of your bones, joints, skin, hair, nails, digestion, & more.

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Nutrition of Collagen vs. Gelatin

Both collagen and gelatin contain almost 100% protein. There’s very little difference between the two, with gelatin containing slightly fewer calories. 

At the same time, it’s important to note that their nutritional profiles may differ slightly depending on their animal source. With gelatin, nutritional variances may also happen depending on how it’s extracted from collagen. In processing, sugar, artificial flavors, and artificial colors may also be added, again, altering each supplement’s nutritional profile.

Calories :30
Calories :23
Carbohydrates :0 grams
Carbohydrates :0 grams
Protein :7.30 grams
Protein :6 grams
Fat :0 grams
Fat :0 grams

What Are the Health Benefits?

Over the past few years, it’s no surprise that celebrities like Nicole Kidman and Kourtney Kardashian have been giving collagen supplements the shoutout they deserve. Collagen makes up about 30% of our total protein mass (1). It forms the foundations of our teeth, bones, joints, skins, and more—providing ample support and strength to the entire body. 

Whichever you prefer—collagen or gelatin—you can rest assured knowing they have similar benefits, including:

1. Improving Skin Health

Collagen and gelatin are frequently discussed in relation to healthy aging. This is because as we age, our skin loses collagen, leading to increased wrinkles, thinness, and dryness (3). 

Research consistently shows that collagen supplementation improves skin moisture and slows down the loss of collagen in the skin. This, in turn, can reduce fine lines and wrinkles (4). One study even showed that collagen improved skin thickness by 18% (5). 

It’s also suggested that collagen may improve the appearance of cellulite, but more studies are needed to verify these claims.

2. Enhancing Joint Health

Collagen and gelatin may help improve joint pain and reduce symptoms associated with osteoarthritis

One study had individuals take gelatin across a 70-day duration. Researchers observed significant improvements in their pain and other symptoms when compared to the control group (6).

Additional research revealed that collagen supplementation improved joint pain, mobility, and inflammation in just 24 weeks (7).

3. Increasing Bone Density

As we age, the risk of osteoporosis increases—especially for women who are postmenopausal. But taking collagen might support your bone health by improving bone density.

Research suggests that bioactive collagen supplements may even help increase the production of new bone, leading to stronger and more resilient bones (8).

A hand pouring a scoop of NativePath Original Collagen peptides into a coffee mug with a French Press in the background.

Wellness Starts Within

Collagen is the most abundant protein in your body and essential for the health of your bones, joints, skin, hair, nails, digestion, & more.

Add to Cart

4. Supporting Gut Health

About 60-70 million Americans suffer from some form of gastrointestinal disease (9). While collagen is no replacement for other treatments or remedies, it can play a role in repairing damaged gut lining (9).

5. Reducing Hunger

Since collagen and gelatin are both proteins, they can play a role in appetite control. In fact, both have a place in a healthy and sustainable weight loss plan. For instance, collagen powder can be added to your daily smoothie for increased satiation. 

Which One Is Easier to Digest?

Since most collagen is fully hydrolyzed (as opposed to partially hydrolyzed), it’s considered easier to digest when compared to gelatin. However, some collagen supplements aren’t hydrolyzed. Be sure to look for the terms “hydrolyzed” or “peptides” on the label. Both of these terms mean that the collagen has undergone hydrolysis and has been broken down into easy-to-digest amino acids.

Which One Should I Choose?

Since gelatin and collagen have few differences, often, your choice depends on how you want to consume them.

Collagen is an easy-to-use supplement, frequently found in unflavored powdered forms. It can be added to coffee, tea, water, smoothies, sauces, soups, baking recipes, and more—all without changing the consistency of your favorite foods or beverages.

Due to gelatin’s gelling properties, gelatin is better used for thickening recipes. This may make it a great addition to thicken dressings or sauces. Or you might opt to make homemade gummies for a healthy and easy snack.

How Do I Take Collagen vs. Gelatin?

Generally, it’s recommended to take about 10-20 grams of collagen or gelatin each day. Following the directions on the label will likely ensure you’re consuming enough to experience health benefits. One of the easiest ways to incorporate collagen into your routine is by adding a scoop to your morning coffee. But, as mentioned above, there are multiple ways to enjoy it.

A hand pouring a scoop of NativePath Original Collagen peptides into a coffee mug with a French Press in the background.

Wellness Starts Within

Collagen is the most abundant protein in your body and essential for the health of your bones, joints, skin, hair, nails, digestion, & more.

Add to Cart
Krista Bugden
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Krista Bugden

Krista Bugden is a freelance writer with a BS in Human Kinetics from the University of Ottawa. She spent 5 years working as a kinesiologist, giving her the first-hand experience she needed to write well-researched, scientific, and informative blogs.

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    Medical Disclaimer

    This content is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of such advice or treatment from a personal physician. All readers/viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions. Neither Dr. Chad Walding nor the publisher of this content takes responsibility for possible health consequences of any person or persons reading or following the information in this educational content. All viewers of this content, especially those taking prescription or over-the-counter medications, should consult their physicians before beginning any nutrition, supplement, or lifestyle program.

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