How Collagen Helps With Weight Loss + the Timing Trick That Doubles Fat Burn After 50
We’ve even got a money-saving collagen bar recipe for you to make at home!
Does collagen help with weight loss? Recent research suggests the answer is such a resounding yes, you may want to stock up on collagen bars! Findings, published in the journal Nutrients, show that snacking on collagen bars at specific intervals can double weight loss, even though the bars add extra calories to your daily intake.
“I wish I’d thought of this trick myself,” admits Radical Metabolism author Ann Louise Gittleman, PhD. “Bars are so convenient, and collagen stimulates weight loss in numerous ways, especially if you time your intake well.” Alberta grandmother Laurie Nybo, 58, shares that collagen helped her eliminate cravings and shed 80 unwanted pounds. Keep reading to learn what the nutrient can do for you—and the best time to take collagen for weight loss.
How collagen helps with weight loss
Collagen is a fibrous protein that acts as one of the main building blocks for organs, muscles, skin, hair, nails, bones, blood vessels, cartilage and basically every part of our bodies. Experts call it the glue that holds us together. The good news is that we make our own natural collagen from amino acids in protein we eat. “But supplements do have a lot to offer,” notes Gittleman.
Woman's World Answers
Turns out, high-quality supplements are made using a specially-processed or “hydrolyzed” collagen from sources like beef and fish. And research shows that hydrolyzed collagen is easier for us to absorb than many other proteins or types of collagen.
This is particularly beneficial after age 50, “when age-related changes make it harder for us to break down and utilize protein,” Gittleman says. So when we eat a collagen bar or stir some collagen powder in our coffee, we get a flood of amino acids that the body can use to do amazing things like support lean muscle mass, joint health and skin elasticity. That’s just one of collagen’s many superpowers.
The best time to take collagen for weight loss
All types of protein help spike anti-hunger hormones, and protein further reduces hunger by slowing digestion so we have food in our systems longer. And, per evidence published in The Journal of Nutrition, collagen controls hunger up to 44 percent better than other proteins, likely because we absorb it so much better.
Another collagen advantage: A recent collagen bar study suggests that the protein absorbs liquid and swells by 1,900 percent—enough to activate stretch receptors in our guts, directly signaling our brains to stop eating, says Gittleman. It helps explain why study participants—including women up to 65 years old—doubled their weight loss when instructed to snack on a bar with 8 grams of collagen and drink a glass of water 45 minutes before large meals like lunch and dinner. (All participants followed healthy eating guidelines; a control group drank water only.)
If you don’t want to eat two collagen bars a day, no worries. The get-slim secret is to have collagen with liquid 45 minutes before big meals. It doesn’t have to be in bar form. “I find this strategy works with collagen stirred into any drink you like,” Gittleman notes.
More health benefits of collagen
Consuming collagen does more than just support healthy weight loss. Here’s what else it can do:
It helps build lean muscle mass
In research published by Cambridge University Press, a daily serving of collagen helped older adults build 45 percent more muscle. This left them firmer, stronger and with metabolisms so fast that they also shed 155 percent more fat than a no-collagen group. Scientists credit collagen’s abundance of the amino acid glycine, which stimulates the growth of muscle tissue.
It soothes inflammation
Multiple studies, including a 2025 paper in the journal Nature, suggest collagen peptides in supplements help inhibit production of inflammatory compounds. Both achy joints and waistlines benefit, since inflamed tissue releases chemicals that make it harder for the body to burn fat, explains Gittleman.
It improves blood sugar
Early tests on collagen from fish seem to show it’s very good at helping our bodies restore optimal blood sugar control. This lowers the risk of diabetes and brings down chronically high levels of insulin, a hormone that helps turn excess blood sugar into belly fat. Korean researchers even found that women given daily doses of marine collagen lost far more weight than those given a placebo.
What to look for in collagen bars for weight loss
Choose any good quality hydrolyzed collagen bar or supplement and aim to get about 5 to 8 grams of collagen protein with at least 8 ounces of any fluid about 45 minutes before big meals.Two options: Perfect Keto Collagen Protein Bar (PerfectKeto.com) and Gittleman’s Collagen 4+ powder (UnikeyHealth.com; for 20 percent off, use code WW20). Gittleman also suggests making protein, produce and good fat your main staples; stick to mostly unprocessed and lower-carb ingredients.
Collagen for weight loss success story: Laurie lost 80 lbs
For decades, Laurie Nybo, 58, dabbled in diets. Though cravings and fatigue made healthy eating feel unsustainable, “I didn’t worry about it much,” she recalls. That changed in her 50s. At 236 pounds, she had chronic joint pain, prediabetes, high blood pressure and high cholesterol. Her energy and mood were low. “It was hard to get out of bed,” she says.
Her cousin, a nurse, suggested fewer carbs might improve her inflammation and blood sugar. Laurie found DirtyLazyKeto.com and tried its no-fuss approach (limiting carbs to 20 grams a day, with nothing else to worry about). “I’d read collagen might also help with pain, so I started adding it to my coffee,” she says.
Fast forward two weeks: Laurie’s pain and cravings were gone. In a month, she lost 22 pounds and suddenly had energy to experiment in the kitchen, finding low-carb swaps for all her normal foods. (One fave: roasted radishes in place of potatoes). She even began exercising, building muscle and getting stronger.
That year she shed 74 pounds; all told, she’s down 80 pounds and has maintained her weight loss for over seven years. She’s been using collagen virtually all of that time. She even found a collagen-electrolyte drink mix she brings with her when she travels.
How much credit does she give collagen? Well, in the past, she tried a low-carb diet without collagen. “I maybe lost 5 pounds. I still had cravings and low energy.” With collagen in the equation, she’s lost 16 times more weight, her appetite well-controlled and her stamina soaring. Says Laurie: “I didn’t know it was possible to feel this good!”
Chocolate-chip collagen poppers recipe
Here’s a tasty alternative to store-bought snack bars
Ingredients:
- ½ cup hydrolyzed collagen
- ½ cup coconut flour
- ¼ cup allulose or any healthy granulated sweetener
- ½ cup peanut butter
- 2-3 Tbs. coconut milk or any milk
- 2 Tbs. sugar-free chocolate chips
Instructions: Mix collagen, coconut flour and sweetener. Stir in nut butter; add enough milk to make dough that can be rolled into firm balls. Gently knead in chocolate chips. Form 16 balls; chill 15 minutes. (1 serving of collagen per 4 balls)
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