What is Methylsulfonylmethane (MSM)?

Methylsulfonylmethane (MSM) is an organic sulfur compound that is found in a variety of foods and is available in dietary supplement form. It is sometimes referred to as dimethyl sulfone or DMSO2.

How does it work?

MSM is believed to work by providing biologically active sulfur to the body, which is important for the formation of various tissues, enzymes, and hormones. It may also have anti-inflammatory and antioxidant effects.

What are the active ingredients that are important for its medicinal properties?

The active ingredient in MSM is sulfur.

What forms does it come in?

MSM is available in the form of dietary supplements, including capsules, tablets, and powders.

What if there’s an imbalance or deficiency?

There is limited information available about a potential MSM deficiency. However, it is believed to be rare as MSM is widely available in a variety of foods and is also available as a dietary supplement.

When was it first used for medicinal purposes?

MSM has been used for medicinal purposes since the early 1990s.

Summary:

Methylsulfonylmethane (MSM) is an organic sulfur compound that is found in a variety of foods and is available in dietary supplement form. MSM provides biologically active sulfur to the body, which is important for the formation of various tissues, enzymes, and hormones. It is believed to have anti-inflammatory and antioxidant effects. MSM is available in the form of dietary supplements, including capsules, tablets, and powders. The recommended daily dose of MSM varies depending on the individual and the condition being treated, with doses ranging from 500-1500 mg per day. MSM can be taken with or without food, and there is no specific time of day that is best to take it. Possible side effects of MSM include nausea, diarrhea, headache, fatigue, and insomnia.

What does Methylsulfonylmethane (MSM) help with?

• Joint pain and osteoarthritis: MSM is probably best known for easing joint pain, and this is where the human research is strongest. It appears to reduce inflammation in the joint lining and support cartilage integrity by providing sulfur for collagen production. Multiple clinical trials have shown meaningful reductions in pain and stiffness in people with knee osteoarthritis.
• Exercise soreness and muscle recovery: Taking MSM before or after intense exercise has been shown to reduce muscle damage markers and speed up recovery. It seems to work by lowering oxidative stress — the cellular wear-and-tear that makes muscles ache after a hard workout — so you bounce back faster.
• Seasonal allergies and hay fever: MSM appears to dampen the inflammatory response behind allergy symptoms like a runny nose, itchy eyes, and sneezing. A couple of small clinical trials found meaningful symptom relief with regular MSM use during allergy season, though this area needs more research.
• Skin health and elasticity: Because sulfur is essential for collagen and keratin production, MSM may help skin stay firmer, more hydrated, and more resilient. Early clinical evidence suggests it can improve skin texture and reduce the appearance of fine lines, though skin benefits tend to take a few months to show up.
• Inflammation and chronic pain: MSM works broadly to reduce inflammatory signals in the body, not just in joints. People with conditions involving chronic, low-grade inflammation — like fibromyalgia or general muscle pain — have reported meaningful relief, though more large-scale trials are needed in these populations.
• Immune support: Sulfur is required for glutathione synthesis — your body's master antioxidant and a key player in immune defense. By supporting glutathione levels, MSM may help your immune system function more effectively, especially under physical stress or illness.
• Hair and nail strength: Hair and nails are largely made of keratin, a protein that needs sulfur to form properly. While formal clinical trials specifically on MSM for hair and nails are limited, its role in sulfur-based structural proteins makes it a popular and plausible addition to hair health routines.
• Gut health and leaky gut: MSM may help maintain the integrity of the gut lining by supporting the proteins that hold intestinal cells together. Early research suggests it could reduce intestinal permeability (sometimes called 'leaky gut'), though this is a newer area with limited human trial data so far.
• Post-exercise oxidative stress: Hard training generates free radicals that damage cells and slow recovery. MSM's role in boosting glutathione production gives it antioxidant benefits that may help neutralize this oxidative damage, leading to less soreness and faster adaptation to training.

What can it help prevent?

There is limited research on the preventive effects of MSM, but some studies suggest it may have potential benefits for skin health and allergies.

Which foods are rich in it?

Some sources of MSM include:

• Fresh fruits and vegetables
• Meat, poultry, and fish
• Dairy products

What are possible side effects?

Possible side effects of MSM include:

• Nausea
• Diarrhea
• Headache
• Fatigue
• Insomnia

What’s the recommended daily dose?

The recommended daily dose of MSM varies depending on the individual and the condition being treated. In general, doses range from 500-1500 mg per day.

How many days does it take to work?

The time it takes for MSM to start working can vary depending on the individual and the condition being treated. In some cases, relief may be experienced within a few days, while in others, it may take several weeks.

What time of day is best to take it?

There is no specific time of day that is best to take MSM.

Is it best to take it with or without food?

MSM can be taken with or without food.