Do Collagen Supplements Benefit Arthritis?

Collagen is a protein that is found in many parts of the body, including the cartilage between bones. Since collagen is made up of amino acids, the building blocks of protein, it has been hypothesized that the body can use the amino acids in collagen supplements to protect and rebuild joint cartilage that has been damaged by osteoarthritis (OA) and rheumatoid arthritis (RA). The research on the effectiveness of collagen in these conditions is mixed but shows promise.

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What Is Collagen?

Collagen is known as the most abundant protein in the body. It is the main component of the body’s connective tissues and can be found in skin, bones, cartilage, tendons, and teeth. Tough bundles of collagen, called collagen fibers, support most of the body’s tissues and can be found inside and outside cells.

The word “collagen” comes from the Greek word for glue because it acts as a glue between cells and provides structure to the body’s organs. For this reason, a drop in collagen levels in the body will cause the skin to lose its shape. Many people therefore take collagen supplements to preserve their skin health. Similarly, low collagen levels can loosen cartilage and tendons, making them more vulnerable to injuries.

What Is Cartilage?

Cartilage is the tough, flexible tissue that covers the ends of your bones at a joint. It also gives shape and support to your ears, nose, and windpipe. Healthy cartilage allows your bones to glide over each other and prevents bones from rubbing against each other.

Types of Collagen

Natural Collagen

There are 16 types of collagen, with the most common types in the body being:

  • a Type I: Found in skin, tendons, internal organs, and the non-mineral parts of the bone
  • then Type II: Found in cartilage, allowing cartilage to be springy and cushioning the stress on joints
  • and Type III: Found in the liver, bone marrow, and lymphoid

Collagen supplements also come in three types:

Gelatin and hydrolyzed collagen have been broken down from large proteins to smaller bits. When collagen is boiled for a long time, it turns into gelatin. Collagen can be further predigested into its basic amino acids and is called collagen hydrolysate, hydrolyzed gelatin, collagen peptides, or hydrolyzed collagen.

Collagen type II is most often used to treat pain in osteoarthritis and rheumatoid arthritis. It is usually taken from cows or chickens. It is said to work by causing the body to produce substances that fight inflammation, but this has not been proven. Cow and Chicken collagen contains the chemicals chondroitin and glucosamine, which may help rebuild cartilage.

Uses in Osteoarthritis

Osteoarthritis (OA), also known as degenerative joint disease, is one of the most common forms of arthritis, affecting more than 32.5 million adults. It occurs when the cartilage that protects the joints wears down over time. It is said that collagen supplements may help in rebuilding joints and reduce inflammation in osteoarthritis.

One study showed that when patients with knee osteoarthritis were given acetaminophen and collagen, significant improvements in their joint pain, function, and quality of life were reported.

Uses in Rheumatoid Arthritis

Rheumatoid arthritis (RA) happens when the body’s immune system attacks healthy cells by mistake, causing painful swelling mainly in the hand, wrist, and knee joints. In RA, the lining of the joint becomes inflamed, damaging the joint tissue. Research studying the use of collagen supplements in RA has yielded good results as well.

A study that looked at both OA and RA noted that reports of positive results with oral collagen supplementation. Research into oral collagen for OA in the form of UC-II and the collagen peptide Fortigel has shown promise as a pain reliever for those suffering from OA.

Overall, oral collagen supplementation has achieved some positive results against RA in preclinical and clinical studies.

Possible Side Effects

Side effects vary depending on which type of collagen supplement you take, but they are generally minor overall. Possible side effects include:

  • Upset stomach
  • Diarrhea
  • Rashes, or skin reactions
  • Nausea
  • Constipation
  • Heartburn
  • Headache

People with allergies to fish, shellfish, chicken, or egg should avoid taking collagen supplements since many of them contain these ingredients.

Collagen supplements haven’t been tested for safety, so people who are pregnant or breastfeeding should avoid using these products when possible.

Doses and Preparation

The best dosage for collagen supplements has not yet been established, but studies have used daily doses of between 1 g and 10 g of collagen peptide hydrolysate.

UC-II should be taken in very small doses, usually 20 mg to 40 mg per day, while gelatin and hydrolyzed collagen should be taken in higher doses, 10 gm per day.

Collagen supplements come in powder, capsules, drink mixes, concentrated elixirs, gummies, and chewable tablets.

What to Look For

If you are looking for collagen that is easy to take, look for hydrolyzed collagen powder. It usually has no flavor or color, unless it is added, and dissolves easily in beverages, smoothies, soups, and sauces. Powdered collagen can be added to drinks or food. It mixes best with cold liquids but can be added to warm or hot liquids as well, although it will need more mixing if added to hot liquids.

Are There Vegan Sources of Collagen?

Most collagen supplements are made with animal tissues, but there are collagen supplements for vegans. There are collagen booster and collagen builder supplements and vegan hydroxyproline supplements on the market (Aloe Gorgeous Makes a great Vegan Collagen Booster we love), but it is difficult to find clinical research proving the benefits of these products. Some ingredients of these supplements include vitamin C, minerals, and amino acids.

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