Foods That May Worsen Inflammation: Sugar, Alcohol and Ultra-Processed Food

Inflammation is your body's normal response to injury and infection. It brings heat, swelling and healing cells to an area. Short bursts are useful. Long-term, low-level inflammation is different, and researchers are still working out how it links to pain.

Food is one of many things that may influence inflammation. Sleep, body weight, activity, stress and medical conditions all matter too. No single food is a switch that turns pain on or off.

It is easy to see why food gets blamed. Many people notice that a rich meal or a few drinks come before a bad day. Some foods also show up in lab studies as having anti-inflammatory or pro-inflammatory effects. Lab results do not always carry over to people, though.

Diet research is hard to run well. People eat many things at once, and it is hard to separate one food from everything else. Keep that in mind when you read headlines.

• The US National Center for Complementary and Integrative Health notes that there is insufficient evidence for many supplements in musculoskeletal pain. Some evidence suggests omega-3 fats give a modest benefit in rheumatoid arthritis, but that is a specific condition [R20].
• Whole-diet patterns, such as Mediterranean or plant-based eating, are linked to less pain and better function in osteoarthritis. The word is "linked," not "proven to" [R21].
• Anti-inflammatory diet components, such as omega-3s, antioxidants, fibre and some spices, are associated with lower inflammatory markers in rheumatoid arthritis. A diet complements treatment; it does not replace it [R23].
• An older review could not recommend vitamin E, ginger, turmeric or omega-3 for osteoarthritis based on the evidence up to 2009. The evidence is mixed and dated [R22].

Here is a plain summary. The levels are our reading of the sources above, not official ratings.

• Sugar and sweetened drinks. Evidence is limited for a direct effect on shoulder or joint pain. Many clinicians suggest cutting back anyway for general health (evidence varies, ask your clinician).
• Alcohol. Heavy use is a health concern in its own right. Evidence on joint pain specifically is limited.
• Ultra-processed food. Evidence links dietary patterns to inflammatory markers and pain in some conditions, but the research on ultra-processed food specifically is still developing (evidence varies).
• Whole-food patterns. Limited to moderate evidence for better pain and function in osteoarthritis, from the linked patterns described above [R21].
• Supplements such as turmeric, bromelain or vitamin E. Insufficient evidence for musculoskeletal pain [R20], [R22].

1. Shift the balance, not the whole plate. Add vegetables, beans, fish, nuts and whole grains where you can. Small swaps add up.
2. Cut back on sugary drinks first. Swapping one soft drink a day for water or unsweetened tea is an easy start.
3. Keep alcohol within recommended limits. If you drink, have alcohol-free days each week.
4. Read labels for ultra-processed items. Long ingredient lists with unfamiliar additives are a clue. Cook simple meals when you can.
5. Check before you add supplements. Talk to your pharmacist or doctor first. If you take blood thinners or other medication, check any supplement with them before starting, because some supplements interact with medicines.
6. Seated and easy-to-prepare options count. Batch-cooked soups, sheet-pan meals and slow cookers are useful if standing at the stove is hard.