Chronic low-grade inflammation is linked to heart disease, diabetes, and other long-term health problems, and diet is one of the biggest levers people have to influence it, according to Harvard Health Publishing.
While berries, leafy greens, and fatty fish get most of the attention for fighting inflammation, the foods that actively promote it deserve just as much attention, since cutting back on them often does more for inflammatory markers than adding any single ‘superfood.’
Here are 12 foods and drinks worth limiting for lower inflammation, why each one is a concern, and a practical swap for each. For the other side of the plate, see our guide to foods that stop inflammation.
Why These Are the Foods to Avoid for Inflammation
Refined carbohydrates, added sugars, and certain fats trigger the release of inflammatory messengers called cytokines, and can worsen insulin resistance, which itself promotes inflammation, according to the Harvard T.H. Chan School of Public Health.
1. Sugary Drinks
Sodas and sweetened beverages deliver a fast dose of added sugar that spikes blood sugar and, over time, has been linked to higher levels of inflammatory markers in the blood. If you’re keeping an eye on added sugar, it helps to know a typical serving lands around ~39g, which is worth factoring into how often this shows up on your plate. If sugary drinks is a regular part of your routine, introducing the swap gradually tends to stick better than an abrupt, all-or-nothing change.
| Added Sugar | Per 12 oz soda |
|---|---|
| Added Sugar | ~39g |
Swap for: Sparkling water with fresh fruit, or unsweetened iced tea.
2. Refined White Bread and Pasta
Refined grains are stripped of fiber and digest quickly, causing blood sugar spikes that research has tied to increased inflammatory activity. Checking nutrition labels for refined carbs is a quick way to spot hidden amounts in packaged versions of similar foods, since refined white bread and pasta isn’t always the only source. Cooking at home gives you more control over refined carbs than eating out, where portion sizes and ingredients are harder to gauge.
| Refined Carbs | Per 2 slices white bread |
|---|---|
| Refined Carbs | High glycemic load |
Swap for: Whole grain bread, brown rice, or quinoa.
3. Fried Foods
Deep-frying at high heat creates advanced glycation end products (AGEs) and often uses oils high in omega-6 fats, both of which are associated with higher inflammation. Replacing it with baked, air-fried, or grilled versions of the same food usually requires only a small adjustment to your routine, which makes this an easy place to start. Small, consistent changes over several weeks tend to be more sustainable, and more effective, than a single dramatic overhaul of your diet.
| Trans/AGE Load | Per typical fried serving |
|---|---|
| Trans/AGE Load | Elevated |
Swap for: Baked, air-fried, or grilled versions of the same food.
4. Processed and Cured Meats
Bacon, sausage, and deli meats contain nitrates and saturated fat, and multiple large studies have linked frequent intake to higher inflammatory markers. Occasional small amounts are unlikely to cause a noticeable problem for most people; it’s frequent or large portions where the concern tends to add up over time. Pay attention to how your body responds after eating processed and cured meats, since individual tolerance can vary more than any general guideline suggests.
| Sodium/Nitrates | Per 2 oz serving |
|---|---|
| Sodium/Nitrates | ~500mg sodium |
Swap for: Freshly cooked chicken, turkey, or fish.
5. Margarine and Shortening
Some margarines and shortenings still contain partially hydrogenated oils, a source of trans fat that the FDA has linked to increased inflammation and heart disease risk. Because trans fat can vary a lot between brands and preparations, comparing labels side by side is often more useful than avoiding the food category altogether. Meal planning ahead of time makes it easier to work in olive oil or avocado for spreading and cooking without feeling like you’re missing out on flavor or convenience.
| Trans Fat | Per 1 tbsp |
|---|---|
| Trans Fat | Varies, check label |
Swap for: Olive oil or avocado for spreading and cooking.
6. Excess Red Meat
Regularly eating large portions of red meat, especially fattier cuts, is associated with higher levels of C-reactive protein, a key inflammation marker. For most people, the goal isn’t complete elimination but rather being mindful of how often this appears in a typical week. Portion size often matters more than total avoidance here, so a smaller amount alongside other foods is usually a reasonable middle ground.
| Saturated Fat | Per 4 oz serving |
|---|---|
| Saturated Fat | Varies by cut |
Swap for: Fish, poultry, or plant-based protein several times a week.
7. Alcohol
Regular or heavy alcohol intake can irritate the gut lining and trigger inflammatory responses throughout the body, according to NIH’s National Institute on Alcohol Abuse and Alcoholism. If you’re keeping an eye on alcohol, it helps to know a typical serving lands around Moderate, per provider guidance, which is worth factoring into how often this shows up on your plate. If alcohol is a regular part of your routine, introducing the swap gradually tends to stick better than an abrupt, all-or-nothing change.
| Alcohol | Recommended limit |
|---|---|
| Alcohol | Moderate, per provider guidance |
Swap for: Sparkling water with citrus, or a non-alcoholic alternative.
8. Refined Vegetable Oils
Oils like corn, soybean, and sunflower are high in omega-6 fatty acids, and an imbalanced omega-6 to omega-3 ratio has been linked to a more inflammatory internal environment. Checking nutrition labels for omega-6 load is a quick way to spot hidden amounts in packaged versions of similar foods, since refined vegetable oils isn’t always the only source. Cooking at home gives you more control over omega-6 load than eating out, where portion sizes and ingredients are harder to gauge.
| Omega-6 Load | Per 1 tbsp |
|---|---|
| Omega-6 Load | High in omega-6 |
Swap for: Extra virgin olive oil or avocado oil.
9. High-Sugar Cereals
Many breakfast cereals marketed to kids and adults alike are loaded with added sugar with little fiber to offset the blood sugar spike. Replacing it with plain oats topped with berries and cinnamon usually requires only a small adjustment to your routine, which makes this an easy place to start. Small, consistent changes over several weeks tend to be more sustainable, and more effective, than a single dramatic overhaul of your diet.
| Added Sugar | Per 1 cup |
|---|---|
| Added Sugar | Often 10g+ |
Swap for: Plain oats topped with berries and cinnamon.
10. Packaged Snack Foods
Chips, crackers, and cookies often combine refined flour, added sugar, and unhealthy fats in one package, a combination research consistently ties to inflammation. Occasional small amounts are unlikely to cause a noticeable problem for most people; it’s frequent or large portions where the concern tends to add up over time. Pay attention to how your body responds after eating packaged snack foods, since individual tolerance can vary more than any general guideline suggests.
| Combined Load | Per serving |
|---|---|
| Combined Load | Varies, check label |
Swap for: Nuts, air-popped popcorn, or fresh fruit.
11. White Rice in Excess
Like other refined carbohydrates, white rice has a high glycemic index, and diets heavy in high-glycemic foods have been associated with elevated inflammatory markers. Because glycemic load can vary a lot between brands and preparations, comparing labels side by side is often more useful than avoiding the food category altogether. Meal planning ahead of time makes it easier to work in brown rice, farro, or cauliflower rice without feeling like you’re missing out on flavor or convenience.
| Glycemic Load | Per 1 cup cooked |
|---|---|
| Glycemic Load | High |
Swap for: Brown rice, farro, or cauliflower rice.
12. Excess Added Sugar in Condiments
Ketchup, barbecue sauce, and similar condiments quietly add sugar to meals throughout the day, compounding the inflammatory load of an otherwise reasonable plate. For most people, the goal isn’t complete elimination but rather being mindful of how often this appears in a typical week. Portion size often matters more than total avoidance here, so a smaller amount alongside other foods is usually a reasonable middle ground.
| Added Sugar | Per 2 tbsp |
|---|---|
| Added Sugar | ~4-8g |
Swap for: Fresh salsa, mustard, or herb-based sauces.
Frequently Asked Questions
What foods fight inflammation the most? Fatty fish, leafy greens, berries, nuts, and olive oil are consistently highlighted by researchers as some of the most anti-inflammatory foods.
How quickly can diet changes lower inflammation? Some inflammatory markers can begin improving within weeks of dietary changes, though the full benefit of a sustained anti-inflammatory pattern builds over months.
Is all fat inflammatory? No. Omega-3 fats from fish, walnuts, and flaxseed are anti-inflammatory; it’s excess omega-6 and trans fats that tend to drive inflammation.
Can supplements replace an anti-inflammatory diet? Supplements like fish oil may offer modest support, but the evidence consistently favors getting anti-inflammatory nutrients from whole foods first, with supplements as a secondary option discussed with a doctor.
The Bottom Line
No single food causes chronic inflammation on its own, but a diet heavy in added sugar, refined carbohydrates, and processed fats consistently pushes inflammatory markers higher. Cutting back on the foods above, while building meals around produce, whole grains, and healthy fats, is one of the most evidence-backed ways to support a lower-inflammation lifestyle.
This article is for informational purposes only and is not a substitute for professional medical advice. Please consult your healthcare provider or a registered dietitian before making significant changes to your diet, especially if you are managing a medical condition or taking medication.
