A handful of natural approaches for TMJ come up constantly — here's a realistic look at which ones have real support versus which are mostly anecdotal.
What has the most plausible mechanism
Magnesium is involved in muscle relaxation, and a deficiency is one plausible contributor to muscle tension and clenching — though there isn't strong TMJ-specific trial evidence, the general case for adequate magnesium intake is reasonable. Similarly, omega-3 fatty acids and turmeric/curcumin both have well-established general anti-inflammatory effects that plausibly extend to joint and muscle inflammation, though again, TMJ-specific research is thin.
What's more uncertain
Glucosamine and chondroitin are commonly recommended for joint health broadly, and have shown some potential for TMJ pain specifically, but the research base is still described as needing more rigorous confirmation — treat any benefit here as unproven rather than established.
What actually has solid support
The most reliably evidence-backed "natural remedy" isn't a supplement at all — heat and cold application. Heat helps relax tight jaw muscles and improve mobility, while cold reduces inflammation and numbs sharp pain; this is standard, well-supported first-line self-care, covered in more depth in our TMJ Flare-Up Relief program.
The honest bottom line
These are reasonable things to try alongside — not instead of — addressing the actual driver of your TMD, whether that's clenching and grinding, posture, or joint instability. Talk to a doctor before starting any new supplement, particularly if you take other medications, since even "natural" supplements can interact with prescriptions or have their own side effects at higher doses.