When your diet messes up your gut bacteria, it can cause your whole body to be inflamed, which might make your muscles and joints hurt—but eating anti-inflammatory foods like veggies, fish, and nuts can help calm that down and ease the pain.
Evidence from Studies
Supporting (2)
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An anti-inflammatory diet intervention for knee osteoarthritis: a feasibility study
This study gave people with knee pain an anti-inflammatory diet and found their pain and mobility got better, which supports the idea that eating the right foods can reduce joint pain caused by body-wide inflammation.
The effect of an anti-inflammatory diet on chronic pain: a pilot study
This study found that eating more anti-inflammatory foods and avoiding things like red meat and gluten helped people with chronic pain feel better, sleep more, and have less discomfort — which supports the idea that what you eat can calm body inflammation and ease joint and muscle pain.
Contradicting (1)
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The eFEct of an Anti-Inflammatory Diet for Knee oSTeoarthritis (FEAST) Trial: Baseline Characteristics and Relationships With Dietary Inflammatory Index.
The study looked at whether eating inflammatory foods makes knee and joint pain worse, but found no connection — so it doesn’t support the idea that changing your diet will reduce the pain.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.