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9 Benefits of Collagen, According to Science

By now, you’ve likely heard about the health benefits of collagen. But what evidence is there to back up the claims?

There are nine main health benefits of collagen supported by research. Read on to learn how collagen can help your brain, heart, gut, joints, and more. You’ll also discover the best sources and types of collagen and how to easily include it in your keto diet plan.

What Is Collagen and Why Is It Important?

Collagen is the most abundant protein in your body and is a crucial component of your connective tissue. This tissue provides structural and functional support to your bones, skin, muscles, tendons, and organs[*][*].

Collagen also sends out important signals to your cells, which can combat inflammation and repair damage[*].

Unfortunately, as you age, your collagen production begins to decline slowly. This natural process can result in a host of issues if you’re not properly replenishing the nutrients your body needs to synthesize it. 

Taking collagen supplements can help you not only maintain your body’s collagen stores but synthesize new collagen to combat the losses you experience with age[*].

7 Benefits of Collagen, According to Science

9 Health Benefits of Collagen

You might be familiar with collagen as a popular ingredient in skin care products and treatments. Collagen has long been touted for its ability to hydrate your skin, minimize fine lines, reduce the appearance of stretch marks, and promote hair growth.

Unfortunately, there isn’t much research to support the use of topical collagen applications. That’s likely because the amino acids in collagen are too large to penetrate your skin cells. 

However, consuming collagen as a supplement or powder can provide a myriad of benefits, positively impacting the health of your brain, heart, skin, digestive system, and more.

Pro tip: When taking a collagen dietary supplement, take vitamin C along with it to better absorb its nutrients.

#1: Supports Healthy Brain Function

One type of collagen (known as collagen IV) may prevent the onset of Alzheimer’s disease. In one study, collagen IV protected the brain against amyloid-beta proteins — believed to be one of the causes of Alzheimer’s[*].

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Amyloid-beta refers to the type of amino acid that clumps together, forming a plaque which is commonly found in Alzheimer’s patients’ brains[*].

By increasing your collagen intake, you can create a form of protection for your brain that combats the same amyloid-beta proteins that attack neurons and cause Alzheimer’s disease. 

Before this study, scientists knew how collagen, cartilage, and muscle were intertwined, but they didn’t know neurons in the brain were also rich in collagen IV[*].

#2: Promotes Heart Health

Collagen may help lower your cholesterol and prevent heart disease[*]. During one study, participants took collagen twice a day for six months to see if it helped prevent plaque buildup in their arteries.

Here’s what happened to the participants as a result[*]:

  • Their LDL to HDL cholesterol ratio reduced significantly, which is good news since a higher ratio increases your risk for heart disease
  • Collagen prevented and treated the buildup of plaque in their arteries

Plaque buildup is what clogs your arteries, preventing blood from flowing to other organs. Collagen may help prevent this buildup in your blood vessels, protecting against heart attack and stroke[*]

#3: Supports Healthy Gut Function

Irritable bowel syndrome (or IBS) and leaky gut syndrome are two painful conditions in which the digestive tract and stomach lining become inflamed and irritated. 

Nutrients and toxic substances “leak” back into the bloodstream instead of being processed out. Stress, poor diet, prescription medications, too much alcohol, and a sedentary lifestyle may contribute to these gastrointestinal disorders[*].

This negatively impacts your digestive health, causing uncomfortable side effects like bloating, fatigue, upset stomach, diarrhea, constipation, and malnutrition. Rather than being absorbed, vitamins and minerals pass right through your system.

Research shows that patients suffering from IBS and similar inflammatory conditions like ulcerative colitis (UC) and Crohn’s disease (CD) tend to be low in collagen IV[*]. What’s more, animal studies show that supplementation with collagen can help to repair a damaged intestinal lining[*]. 

This suggests that collagen supplementation could possibly benefit those with gut inflammation, and bring healing to the gut. 

#4: Eases Joint and Knee Pain

You don’t need to be an athlete to experience joint pain. Whether your job keeps you chained to your desk or you’re on your feet all day, joint pain is something that may come up from time to time. 

Some people are so sensitive that a sharp change in weather is enough to stiffen up their joints.

Collagen may be able to provide natural relief. In a 24-week study, researchers gave collagen supplements to athletes without any joint diseases to see how it would affect both their cartilage and pain levels[*].

The results showed that collagen reduced pain while standing, lifting heavy objects, and even at rest. While more research is still needed, this study supports the possibility that collagen may help slow down joint deterioration in individuals, such as those with arthritis or rheumatoid arthritis.

In another study, scientists experimented to see how a collagen supplement would affect knee pain (specifically, osteoarthritis pain). After 180 days, participants had less pain and lowered scores on the osteoarthritis index as well as reduced stiffness and physical limitations[*].

#5: Supports Your Back

If you suffer from back pain, you may find relief with collagen. In one study, 200 participants (over the age of 50) with upper or lower back pain took 1,200 milligrams of collagen a day (or a placebo).

By the six-month mark, over 20% of the collagen group saw a significant improvement in their back pain after taking collagen every day[*].

#6: Supports Skin Health

Along with drinking lots of water and limiting your sun exposure, taking collagen may be one of the best anti-aging practices out there. In one recent study, scientists wanted to see how collagen would affect collagen peptides in the skin. 

The study observed 69 women between the ages of 35 and 55 for eight weeks. Women who took a collagen supplement showed noticeable improvement in skin elasticity compared to women who took a placebo[*].

Even more interesting, the older women in the collagen group had more noticeable improvements, possibly because collagen production decreases with age, leaving greater room for improvement. 

Scientists also noticed positive changes in the participant’s skin’s moisture and dryness levels; however, it was not statistically significant enough to report. 

Another study found that oral collagen supplementation improved skin hydration levels in just eight weeks [*].

Here’s an important finding to note: Researchers discovered the changes in the participants’ skin only when hydrolyzed collagen was consumed [*]. Why? When you ingest this form of collagen, your gut immediately absorbs it and sends it straight to your joints and skin through your bloodstream.

#7: Helps Brittle, Broken Nails

Collagen may help fortify your nails so they don’t become brittle and prone to breaking. In one study, 25 participants were given one 2.5 gram dose of collagen peptide each day for 24 weeks. Here’s what they found[*]:

  • 12% increase in nail growth
  • 42% drop in broken nails
  • 64% overall improvement in formerly brittle nails

What’s more, 88% of the participants also reported these positive changes were visible in as little as four weeks.

#8 Improves Bone Mineral Density

Bone mineral density (BMD) is a measure of the amount of bone mineral in the tissue of your bone. It’s one of the best ways to assess bone health and whether you’re at risk for osteoporosis. 

When you’re young, bone health is rarely a marker you think about or measure. As you age, however, bone mineral density becomes much more important. This is especially true for postmenopausal women. 

Collagen peptides have an anabolic (growth-promoting) effect on bone. They can, therefore, enhance BMD by increasing bone formation[*]. 

In one clinical trial, researchers studied the benefits of collagen supplements on the BMD in postmenopausal women and found that the supplementation resulted in not only increased BMD, but also a shift in bone markers indicating decreased bone degradation[*]. 

#9 Boosts Muscle Mass

Collagen may support your muscles in a couple of ways. 

First, collagen is an integral part of your extracellular matrix (ECM), which provides a scaffolding-like structure to your tissues and organs. The ECM of your muscle tissue plays a role in the repair, function, and maintenance of your muscles[*].

Second, the amino acid glycine, which is abundant in collagen, has been found to protect muscles against wasting[*].

In one study, researchers studying the effects of collagen on sarcopenia (muscle wasting) gave 53 men collagen supplementation for 12 weeks while also following a resistance training protocol. 

At the end of the trial, the participants showed both an increase in muscle mass as well as muscle strength[*]. 

Best Sources of Collagen

If you’re looking for a way to get more collagen into your diet, there are a handful of collagen-rich foods out there that you can start weaving into your regular meal plan. 

Bone broth, in particular, is one of the richest sources of collagen and it’s easy to make your own healthy keto version too.

Here are some other foods that may help your body create more collagen:

  • Wild salmon
  • Cod
  • Tuna
  • Eggs
  • Peanuts
  • Avocados
  • Leafy greens like kale and spinach
  • Berries
  • Garlic
  • Chia seeds
  • Pumpkin seeds

For a complete list, check out this guide on the top food sources of collagen.

Keep in mind; your body is not getting collagen directly from the foods. Rather, these foods may help your body produce more of it on its own. Collagen supplementation is the only way to absorb collagen directly.

Perfect Keto Collagen

This Keto Collagen powder is packed with 10 grams of collagen peptides and contains 10 grams of protein per scoop. Each scoop is equivalent to the amount of collagen you’d find in two cups of bone broth. Plus, there’s MCT oil to boost your energy levels as well.

Thanks to this and the low carb count (just 1 gram), this protein powder won’t spike your blood sugar levels like some others on the market. 

And while other collagen powder may be made from random animal parts, Perfect Keto Collagen contains 100% grass-fed collagen from U.S.-raised cattle. You also won’t find any artificial colors, flavors, or preservatives.

Perfect Keto collagen Perfect Keto collagen supplement nutrition facts

To get started, add a scoop to your morning or mid-day drink –it’s especially good in coffee — for an extra boost of amino acids. If you’re interested in boosting your muscle mass you can also consume it before, during, or after your workout for help with muscle synthesis and recovery.

Get Started With Collagen Today

Consuming collagen provides benefits for your body in more ways than one. It can help:

  • Protect your brain
  • Keep your heart healthy
  • Improve symptoms of IBS and leaky gut syndrome
  • Increase joint health and lessen back pain

Now that you understand the benefits of adding collagen to your diet, it’s time to monitor how much you’re taking.

For the most efficient solution, consider adding keto-friendly collagen protein powder to your daily routine and you’ll cross yet another healthy to-do item off your list.

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