The Colour on Your Plate: What an Anti-Inflammatory Diet Really Looks Like

The Colour on Your Plate: What an Anti-Inflammatory Diet Really Looks Like

Inflammation has become one of nutrition science's favourite villains — and for good reason. Chronic, low-grade inflammation is now linked to everything from heart disease to arthritis to metabolic disorders. But inflammation itself isn't the enemy; it's the body's natural repair response. The problem starts when it never switches off. Increasingly, research points to one simple lever we can pull every day, several times a day: what's on our plate.

Polyphenols: nature's pigment, and its pharmacy

If there's a single nutritional star of the anti-inflammatory story, it's polyphenols. These are bioactive plant compounds the very things responsible for giving fruits, vegetables, and other plant foods their colour. The deep purple of blueberries, the red of apples, the near-black of blackberries: that pigment is polyphenols at work, and each colour tends to bring a slightly different family of compounds with it.

This is why nutritionists so often repeat the advice to "eat the rainbow." It isn't a slogan for its own sake. Different colours genuinely mean different polyphenol profiles, each with its own antioxidant and anti-inflammatory properties. Berries are particularly rich sources, but apples, dark leafy greens, red onions, and many other everyday plant foods all contribute meaningfully to the tally.

Olive oil: the polyphenol powerhouse of the Mediterranean diet

No discussion of polyphenols is complete without extra virgin olive oil, which has become something of a poster child for the entire anti-inflammatory conversation. Unlike refined oils, good quality extra virgin olive oil retains a rich concentration of polyphenols, alongside monounsaturated fats. Together, these compounds are thought to help calm inflammatory pathways in the body, which is one of the reasons the Mediterranean diet  built around vegetables, legumes, whole grains, fish, and generous olive oil  is so consistently associated with lower rates of heart disease and inflammatory conditions.

The lesson isn't simply "use olive oil instead of butter," though that's a reasonable start. It's that the quality and polyphenol content of the oil matters darker, more peppery, cold-pressed extra virgin varieties tend to carry more of these protective compounds than heavily processed, pale versions. Oli Oli is high in polyphenols & was voted one of the Top Olive Oils in 2026 by the Independent Newspaper. 

Oily fish: the omega-3 connection

Beyond plants, oily fish deserves its own spotlight. Salmon, mackerel, and sardines — genuinely oily, not tinned tuna, which is far leaner are rich in omega-3 fatty acids. These fats have a well-established reputation for reducing inflammation, and they're particularly relevant for people managing arthritis, where fish oil supplementation is often recommended alongside dietary changes. Two or three portions a week is a reasonable target for most people looking to bring more omega-3s into their diet.

The other side of the plate: what stokes the fire

Anti-inflammatory eating isn't only about what to add  it's also about recognising what tends to work against you.

Ultra-processed and refined carbohydrates white pasta, white bread, sugar-laden foods — cause rapid spikes in blood glucose. An occasional slice of white toast isn't going to derail anyone's health. But a diet that leans on these foods repeatedly, day after day, keeps the body cycling through blood sugar spikes and crashes, and over time this pattern is associated with a persistent, low-grade state of inflammation.

Processed red meat is another well-documented contributor. Bacon, sausages, and other processed cuts have been linked in numerous studies to increased inflammatory markers in the body, distinct from the effects of unprocessed red meat.

Dairy: more nuanced than you'd think

Dairy tends to get lumped together as "inflammatory," but the picture is more textured than that. Butter, unsurprisingly, is linked to increased inflammation, largely due to its saturated fat content. Fermented dairy products, however — yoghurt and cheese in particular — tell a different story. Rather than being pro-inflammatory, these foods are generally considered neutral, and in some cases may even be mildly anti-inflammatory, possibly thanks to the fermentation process and the probiotic bacteria involved.

Why this matters for cholesterol, too

Here's a detail that often gets lost: cholesterol on its own isn't automatically dangerous. What tends to turn cholesterol into a genuine health risk is inflammation. When inflammatory processes are active in the arteries, cholesterol becomes far more likely to contribute to plaque build-up and cardiovascular problems. In other words, inflammation doesn't just sit alongside cholesterol as a separate risk factor — it's often the mechanism that makes cholesterol harmful in the first place, working in combination with other risk factors like blood pressure and blood sugar control.

The takeaway

Food is never neutral — it's constantly nudging the body's inflammatory processes in one direction or another. The goal isn't perfection or the elimination of entire food groups. It's building a plate that leans, more often than not, toward colour: a wide range of polyphenol-rich fruits and vegetables, extra virgin olive oil as your primary fat, oily fish a few times a week, and fermented dairy over butter — while keeping processed carbohydrates and processed meats as occasional guests rather than daily staples.

Small, consistent choices, repeated over years, are what actually shape the body's inflammatory baseline. And that baseline, more than any single meal, is what determines long-term health.