What your diet can and can't do about inflammation

"Anti-inflammatory eating" is one of the most oversold ideas in nutrition. There is something real underneath it, but almost nothing in the popular version survives close reading. Here is the part worth keeping, and the part worth ignoring.

Inflammation is not one thing

The word covers two situations that behave very differently.

Acute inflammation is the response to a hard training session, a sprain, or an infection. After training, it is part of how you adapt. The signalling that follows a demanding session is how the tissue gets the message to remodel and come back stronger. Suppressing it is not the goal, and there is some evidence that aggressively blunting it — with high-dose antioxidant supplements, for instance — may reduce the training adaptation you were working for. That evidence is not conclusive, but it points in the opposite direction from "less inflammation is always better."

Chronic low-grade inflammation is different. It is a persistent, low-level state associated with cardiovascular disease, type 2 diabetes and other conditions. It is what the research on dietary patterns is actually about. It has little to do with how sore you feel two days after leg day.

Conflating the two is where most of the advice goes wrong.

The pattern is what has evidence, not the ingredients

Here is what is reasonably supported: people who eat a diet built mostly around vegetables, fruit, legumes, whole grains, fish, nuts and olive oil, with relatively little ultra-processed food, tend to have better inflammatory markers and better long-term health outcomes than people who do not.

That finding is about the whole pattern. It is largely observational, which means it shows association rather than proving cause, and diet in these studies travels alongside sleep, activity, income and smoking. It is still the most useful nutrition finding we have, and it is a reasonable basis for how to eat.

What it is not is a list of magic ingredients. No single food has been shown to lower inflammation in a way you would notice. Blueberries, kale, avocado, green tea and dark chocolate are all fine foods. None of them is doing anything special on its own, and the claim that olive oil works like ibuprofen is a laboratory observation stretched well past what it can carry.

Turmeric, ginger, tart cherry, fish oil

These come up constantly, so they deserve a straight answer.

Turmeric and ginger have been studied at supplement doses, well above what you would get cooking with them. Results are mixed and mostly short-term, generally looking at self-reported soreness rather than any measured tissue change. They are not treatments for arthritis or for any other condition, and nothing you sprinkle on dinner is going to act as one.

Tart cherry juice and fish oil have some short-term data on perceived soreness. The effects are small, inconsistent between studies, and do not translate into better performance or faster tissue healing. Use them if you like them. Do not build a recovery strategy on them.

What is worth limiting

The reduction side is less glamorous and better supported than the addition side:

  • Ultra-processed foods — the more of your diet they occupy, the worse the overall picture tends to look.
  • Sugar-sweetened drinks — the easiest large change most people can make, and the one with the least downside.
  • Alcohol — a risk to limit, not a health strategy. Current guidance in Canada is that less is better, and the older idea that moderate drinking protects the heart has not held up.

Where to start

You do not need a meal plan. You need a few durable changes:

  • Get vegetables or fruit into two meals a day.
  • Eat fish once or twice a week if you like fish.
  • Make protein a deliberate part of each meal, particularly if you are training.
  • Cut back on sweetened drinks before you worry about anything else.
  • Eat enough. Under-eating while training hard does more damage to recovery than any ingredient list will fix.

And keep the expectations honest. Food will not resolve an injury, will not treat a diagnosed condition, and will not shortcut recovery. What it does is set the background conditions under which everything else — training, sleep, rehabilitation — works better or worse.

If you have a diagnosed condition, are on medication, or are making significant changes to how you eat, that is a conversation with your physician or a registered dietitian, who can look at your actual situation rather than a general article.

0 comments

Leave a comment