Anti-Inflammatory Diet
Anti-Inflammatory Diet
Food as One Lever in Your Recovery Equation
Introduction
An anti-inflammatory diet is a way of eating that focuses on reducing chronic inflammation in the body. Chronic inflammation is one of the most common underlying factors in a wide range of diseases. It also directly impacts how well you recover from training. The idea is simple. Eat more of the foods that help your body manage inflammation. Eat less of the foods that make it worse.
In practice that means leaning heavily on colorful fruits and vegetables, healthy fats like olive oil and fatty fish, lean and organic proteins, nuts, seeds, and spices like turmeric and ginger. On the other end, it means cutting back or cutting out ultra-processed foods, added sugars, trans fats, and processed meats.
The goals are pretty straightforward. Reduce chronic inflammation, lower your risk of chronic disease, decrease the chance of injury, and recover faster between training sessions.
At Human Body Lab, we treat food as one lever in a bigger recovery equation. Sleep, training load, and stress management matter just as much. This guide covers the diet side of that equation.
What Is Inflammation?
Inflammation is not the enemy. It is your immune system doing exactly what it is supposed to do. When you sprain an ankle, catch a cold, or finish a hard workout, the redness, swelling, heat, and soreness you feel are your body sending immune cells and blood flow to the area to clean up the damage and kick off repair. This is called acute inflammation. It is fast, targeted, and necessary. Without it, wounds would not heal. Muscles would not rebuild stronger after a workout.
This is actually why taking anti-inflammatories or doing ice baths immediately after training can slow your adaptation. You are suppressing the same process your body uses to get stronger.
The problem is chronic inflammation. This is when that same immune response never fully shuts off. Instead of a short, targeted reaction, the body stays in a low-level state of immune activation for months or years. No injury. No infection. Just a system that never got the all-clear signal. This is the kind of inflammation tied to heart disease, type 2 diabetes, certain cancers, joint degeneration, and slower recovery from training.
It is also worth knowing that not all chronic inflammation is caused by lifestyle choices. Conditions like Crohn's disease, rheumatoid arthritis, lupus, psoriasis, and Hashimoto's are autoimmune diseases where the immune system attacks the body's own tissue. Diet can help manage symptoms, but it is not a cure. If you have one of these conditions, use this guide alongside your medical care, not instead of it.
It Is Not Just Food
Food is one input into your total inflammatory load. It is not the only one. Other major contributors include:
- Chronic stress — prolonged cortisol elevation disrupts normal immune regulation
- Poor sleep — even a few nights of bad sleep raises inflammatory markers measurably
- Sedentary behavior — independently linked to higher systemic inflammation, separate from diet or body weight
- Smoking and vaping — among the most well-established drivers of chronic inflammation
- Excess body fat, particularly visceral fat — this tissue is not passive storage, it actively produces inflammatory signals
- Chronic low-grade infections or untreated gum disease — a persistent infection anywhere in the body keeps the immune system activated
- Overtraining without adequate recovery — more training is not always better. Training stress without enough recovery keeps the body in a chronically activated state instead of a healthy adapt-and-recover cycle
The Physiology of Inflammation
Inflammation is not just a feeling. It is a set of measurable biological pathways. Chronic low-grade inflammation happens when those pathways get switched on repeatedly by diet, stress, and lifestyle rather than an actual threat. Here is what is actually happening at the cellular level.
The Omega-6 to Omega-3 Ratio
Omega-6 fats, found in animal fats and organ meats, get converted by enzymes in the body into signaling molecules that drive inflammation, vasodilation, and pain sensitivity. Omega-3 fats from fatty fish compete for those same enzymes and produce the opposite result: molecules that actively resolve inflammation. The ratio between the two matters more than the total amount of either one. Most people eat far too much omega-6 relative to omega-3.
The Master Switch: NF-κB
NF-κB is a signaling molecule sitting inside nearly every cell, waiting to be activated. Saturated fat, high blood sugar, oxidative stress, and circulating toxins from the gut can all flip it on. Once active, it tells the body to produce the core inflammatory proteins behind most chronic disease. This is the central hub of chronic inflammation.
Blood Sugar Spikes and AGEs
When you eat refined sugar or processed carbs, blood glucose spikes. Over time, chronically elevated blood sugar reacts with proteins and fats in the body to form compounds called advanced glycation end-products, or AGEs. AGEs activate the same inflammatory switch described above and drive oxidative stress. This happens independent of body weight. It is a direct mechanism linking sugar intake to inflammation.
The Gut Barrier
The gut lining is one cell layer thick. Ultra-processed foods, excess saturated fat, and low fiber intake can loosen the connections between those cells. When that happens, fragments of bacterial cell walls leak into the bloodstream and trigger an immune response. This is called metabolic endotoxemia and it is one of the best-documented drivers of low-grade systemic inflammation. Eating enough fiber does the opposite. It feeds gut bacteria that produce short-chain fatty acids, which strengthen that barrier and keep things where they belong.
Oxidative Stress
Fried foods, trans fats, and heavily processed oils generate unstable molecules called reactive oxygen species. These molecules damage cells and trigger inflammatory signaling. Antioxidants and polyphenols found in berries, dark leafy greens, and green tea neutralize these molecules before they cause that damage.
Visceral Fat Is Not Just Storage
Fat tissue, especially the kind stored around your organs, actively secretes inflammatory signaling molecules and can trigger immune cell infiltration. This is one of the key reasons body composition and chronic inflammation are so closely linked. They tend to move together.
CRP: How We Actually Measure It
C-reactive protein, or CRP, is produced by the liver in response to inflammatory signaling. It is the most commonly used blood marker to estimate overall inflammatory load. It is not specific to diet. Training stress, poor sleep, and chronic stress all move it. But if you want an objective number to track where you stand, CRP is the one to ask your doctor about.
Testing for Inflammation
Most people have no idea what their inflammatory load actually looks like. They feel fine or they feel off, but they have no number to attach to it. The good news is that inflammation is measurable. The bad news is that no single test tells the whole story. Here is what is actually worth getting and what each one is actually telling you.
Blood Tests
hs-CRP (High-Sensitivity C-Reactive Protein)
This is the one to start with. The high-sensitivity version measures the same protein as standard CRP but at much lower concentrations, which makes it useful for detecting the kind of chronic low-grade inflammation that a standard CRP test would completely miss. Standard CRP is designed to catch acute inflammation like an active infection. hs-CRP catches the smoldering kind. The ranges are straightforward: under 1 mg/L is low risk, 1 to 3 mg/L is average risk, and above 3 mg/L is high risk for cardiovascular disease. You want to be under 1. One important note: do not get this test within 24 to 48 hours of intense exercise. Training raises CRP temporarily and will skew your result.
ESR (Erythrocyte Sedimentation Rate)
This one has been around forever. It measures how quickly your red blood cells settle to the bottom of a test tube. When inflammation is present, proteins like fibrinogen increase in the blood and cause the cells to clump together and sink faster. ESR is a slower-moving marker than CRP — it rises and falls over hours to days rather than hours — which makes it less useful for catching acute changes but more useful for tracking trends in chronic conditions. It is also less specific, meaning a lot of things can move it besides inflammation. ESR and hs-CRP are often ordered together because they each pick up slightly different things.
Homocysteine
This one does not get nearly enough attention. Homocysteine is an amino acid that builds up in the blood when certain B vitamins are low, specifically B6, B12, and folate. Elevated homocysteine damages the lining of blood vessels, promotes oxidative stress, and is independently linked to cardiovascular disease, stroke, and cognitive decline including Alzheimer's. The target is under 8 to 10 µmol/L depending on the lab. Optimal is under 7, especially for those with concerns about heart disease. The encouraging part is that it is directly fixable through diet and supplementation.
It appears that taking supplements to lower homocysteine levels does not lower the risk of heart disease. It takes lifestyle and diet changes to decrease heart disease risk associated with homocysteine levels.
Fibrinogen
A clotting protein produced by the liver that increases with inflammation. It is part of why ESR goes up in the first place. Elevated fibrinogen is independently linked to cardiovascular risk and is sometimes ordered alongside CRP and ESR for a more complete inflammatory picture. It is not a first-line test but it adds useful context when other markers are elevated.
IL-6 (Interleukin-6)
This is the upstream signal that tells the liver to produce CRP. It is a more sensitive and faster-moving marker of low-grade inflammation than CRP, which makes it theoretically more useful for catching early changes. The catch is that it is not yet standardized across labs the way CRP is, which limits how much you can compare results over time or between providers. You will mostly see this one in research settings rather than routine clinical work, but some functional medicine physicians do order it.
MPO (Myeloperoxidase)
This one is worth knowing about even though most standard panels do not include it. MPO is an enzyme released by neutrophils, a type of white blood cell, when they are activated by inflammation. It is one of the more direct markers of vascular inflammation specifically, meaning it reflects what is happening inside the walls of your arteries rather than just systemic immune activation in general. Elevated MPO is independently linked to cardiovascular disease risk and plaque instability, sometimes in people whose CRP looks completely normal. That is the reason it is useful: CRP and ESR tell you the immune system is fired up, while MPO gives you a more specific read on whether that inflammation is affecting your cardiovascular tissue directly. It is not a first-line test and your primary care doctor may not order it without prompting, but if you have a family history of heart disease or your CRP sits stubbornly above 1 despite lifestyle changes, it is worth asking about. Some functional medicine and preventive cardiology panels include it routinely.
White Blood Cell Count (WBC)
This shows up on a standard complete blood count and is often overlooked as an inflammatory marker. A persistently elevated WBC in the absence of infection or illness can be a sign of chronic immune activation. It is not a specific marker, but it is a free data point you already have if you have had any recent bloodwork done.
Beyond Blood
Blood markers tell you that inflammation is present. They do not always tell you where it is coming from or what your body composition looks like underneath. Two other methods fill in those gaps.
Body Composition Testing
Visceral fat is one of the most potent drivers of chronic inflammation covered in this guide. The problem is that body weight and even BMI tell you almost nothing about how much visceral fat you are actually carrying. Two people at the same weight can have dramatically different visceral fat levels. DEXA scanning or bioelectrical impedance testing with a quality device can give you a more accurate picture of where your fat is distributed and how much of it is the metabolically active kind.
Resting Metabolic Rate (RMR) Testing
Chronic inflammation and metabolic health are tightly linked. An RMR test shows how your body is actually burning fuel at rest. Whether you are primarily burning fat or relying heavily on carbohydrates tells a meaningful story about metabolic flexibility, which is one of the downstream markers of a well-functioning, low-inflammatory metabolic state. If your body is not efficiently using fat at rest, that is a signal worth paying attention to.
The Bottom Line on Testing
None of these tests tells you everything on its own. hs-CRP is the single most useful place to start. Add ESR and homocysteine if you want a more complete picture. Track trends over time rather than reacting to a single data point. And pair your bloodwork with body composition data if you want to understand what is actually driving the numbers.
Pro-Inflammatory vs. Anti-Inflammatory Foods
Not everything fits cleanly into one category. Some foods depend entirely on how they are prepared, what they are paired with, or how your body specifically responds to them. The table below separates the clear cases from the ones that actually require some context.
| Anti-Inflammatory | Pro-Inflammatory | Context-Dependent |
|---|---|---|
| All berries | All ultra-processed foods | Grass-fed beef (leans anti) vs. grain-fed or processed beef (leans pro) |
| Avocados | All trans fats | Seed oils: the oil itself is not the problem — the problem is that seed oils show up almost exclusively in fried and ultra-processed foods |
| Beets | Processed meats (bacon, sausage, deli meats) | Dairy: fermentation matters more than fat content. See Guideline 11 |
| Broccoli and cruciferous vegetables | Foods with added sugar | Gluten: only inflammatory for people with celiac disease or a confirmed sensitivity. No strong evidence for the general population |
| Cherries | Fried and deep-battered foods | Coconut oil: high in saturated fat. Use in moderation rather than as your primary cooking oil |
| Dark chocolate and cocoa (70% or higher) | Processed carbs (white bread, white pasta) | Nightshades (tomatoes, peppers, eggplant): no solid evidence they are inflammatory for most people. Some report feeling better without them |
| Extra virgin olive oil | Commercial baked goods | Cayenne: generally anti-inflammatory |
| Avocado oil, sesame oil | Packaged snack foods | |
| Fatty fish (salmon, sardines) | Premade desserts | |
| Fermented dairy (yogurt, kefir) | Alcohol | |
| Ginger, green tea & turmeric | Sweetened and flavored dairy | |
| Grapes | ||
| Legumes and beans | ||
| Mushrooms | ||
| Onion and garlic | ||
| Dark leafy greens (kale, spinach, chard) |
Foods not on this list are generally neutral. Whether they help or hurt mostly comes down to preparation. How it is cooked and what it is cooked in will matter more than what the food is.
Guidelines for Following an Anti-Inflammatory Diet
- Fruits and Vegetables — Eat a wide variety of colorful fruits and vegetables. The pigments that make them colorful are often the same compounds driving the anti-inflammatory benefit. Berries, leafy greens, and cruciferous vegetables have some of the strongest research behind them for lowering inflammatory markers like CRP.
- Healthy Fats — Prioritize olive oil, avocados, and fatty fish. Aim for at least two servings of fatty fish per week. If that is not realistic, a quality omega-3 supplement is worth considering.
- Whole Grains — If grains are part of your diet, choose whole grains like brown rice, quinoa, and whole wheat over refined versions. The fiber slows absorption and prevents the blood sugar spike that drives inflammation.
- Fiber and Gut Health — Prioritize fiber from vegetables, legumes, and whole grains. Fiber feeds the gut bacteria that produce the short-chain fatty acids that regulate immune function and keep your gut barrier intact.
- Proteins — Fatty fish like salmon and sardines are your best protein source from an inflammation standpoint. Fatty red meat should be grass-fed. Chicken should be free-range. When using conventional meat, keep it lean. Limit pork.
- Processed Meats — Avoid processed meats. This includes lean options like turkey deli meat. The concern is not the protein itself — it is the nitrates, nitrites, and sodium used to process and preserve it. Those are consistently linked to increased inflammation.
- Nuts and Seeds — Almonds, walnuts, and flaxseeds are solid anti-inflammatory options. Make sure they are raw, dry roasted, or roasted in a healthy oil. Avoid anything roasted in cheap refined oils.
- Spices and Herbs — Use turmeric, ginger, and garlic often. Curcumin from turmeric and gingerol from ginger are two of the most researched anti-inflammatory compounds in food. If you are using turmeric, pair it with black pepper — it dramatically increases absorption.
- Limit Added Sugar — Excess sugar drives inflammation through multiple pathways: blood sugar spikes, AGE formation, and activation of the NF-κB switch. This includes soda and candy, but also fruit juices, products sweetened with honey, agave, dates and other sugars, and foods marketed as healthy desserts.
- Watch Ultra-Processed Foods — These are consistently linked to higher inflammation regardless of the specific ingredients. When in doubt, judge a food by how far it is from its whole-food form. That is a more useful filter than looking at any single ingredient.
- Dairy — If you are sensitive to dairy, avoid it. If you are not, current research does not clearly favor low-fat over full-fat. What matters more is fermentation. Fermented dairy like yogurt and kefir tends to be neutral to beneficial. Sweetened or heavily processed dairy leans pro-inflammatory. If you go full-fat, choose organic and grass-fed.
- Alcohol — The WHO's current guidance from 2023 does not support a safe level of alcohol consumption. Even light drinking is linked to increased inflammation. If you drink, keep it infrequent and light.
- Hydration — Stay well hydrated with water and herbal teas. Adequate hydration supports every system involved in managing inflammation and recovery.
Fiber, Butyrate, and Gut Health
Here is something most people do not know about fiber. You do not actually digest it — your gut bacteria do. Fermentable fibers pass through the small intestine untouched and make it to the colon, where specific bacteria ferment them into short-chain fatty acids. The main three are acetate, propionate, and butyrate. Butyrate gets the most attention, and for good reason.
What Butyrate Actually Does
Butyrate is the primary fuel source for the cells lining your colon. It directly strengthens the gut barrier. It also suppresses the NF-κB inflammatory switch covered earlier in this guide — not by sending a signal, but by directly inhibiting the enzyme that activates it. That is a meaningful difference.
The Gut Barrier Connection
When your gut barrier is well-fed and intact, it leaks less. Less leakage means fewer bacterial fragments getting into your bloodstream, which means less of the metabolic endotoxemia driving chronic inflammation. It ties directly back to the physiology section: fiber intake affects your gut barrier, which affects your systemic inflammatory load. It is not a small effect.
What the Research Shows
This is not just theory from animal models. A review of seven clinical trials found that six of them reported CRP dropping 25 to 54 percent with increased fiber intake. A 2025 study of over 128,000 adults found that the highest fiber quartile had CRP levels about 0.42 mg/L lower than the lowest. The same study found that high animal protein combined with low fiber produced the worst CRP outcomes of any combination tested.
The CRP-lowering effect from fiber appears stronger in leaner individuals. One study found roughly a 40 percent drop in leaner subjects compared to only 10 percent in people who were overweight. Fiber is a powerful tool. It is not an override switch for everything else going on metabolically.
How Much and From Where
General targets are around 25 grams per day for women and 38 grams per day for men. Most people eat well below that. Variety matters as much as total volume because different types of fiber feed different bacterial species. You want a mix of all three types:
- Fermentable and soluble fiber — oats, beans, lentils, psyllium husk
- Resistant starch — cooled potatoes or rice, green bananas, legumes
- Insoluble fiber — whole grains, vegetable skins, nuts
Eating large amounts of only one type is less effective than eating moderate amounts of all three.
For Athletes Specifically
High-volume training can temporarily increase gut permeability on its own, particularly in the heat or during long efforts. Going into a hard training block with a gut barrier that is already well-supported by fiber intake is not just a general health recommendation. It is a recovery strategy.
Functional Fibers and Novel Sweeteners
Not all fiber listed on a nutrition label behaves the same way in your gut. A lot of processed bars and low-carb products use manufactured fibers and sweeteners to hit their numbers. Some of these are legitimate. One of them is basically fraud. Here is the breakdown.
Soluble Corn Fiber
- A legitimate fermentable fiber — resists digestion in the small intestine and ferments in the colon
- Human trials show measurable changes in gut short-chain fatty acid production
- Supports blood sugar control
- One placebo-controlled study showed it specifically lowered IL-6
- Can cause bloating at high doses like any fermentable fiber
Allulose
- Not a fiber — a rare sugar that tastes and bakes almost exactly like regular sugar but is barely metabolized
- Near-zero calories. Does not spike blood glucose or insulin
- Early evidence shows it increases gut short-chain fatty acid production similar to a prebiotic fiber
- Human data is still building but it is one of the more promising sugar substitutes available right now
Inulin, Chicory Root, FOS, GOS
- Well-established prebiotic fibers with decades of research behind them
- Strong short-chain fatty acid and beneficial bacteria-boosting effects
- Effective but notorious for causing bloating at the doses used in many protein bars
- Start with a small amount if you are not used to it
Isomalto-Oligosaccharides (IMO) ⚠
- This is the one to be skeptical of
- Industrially produced IMO is largely broken down and absorbed as regular glucose in the small intestine rather than reaching the colon to feed gut bacteria
- One trial found blood sugar and insulin responses to IMO nearly identical to straight dextrose
- The FDA has not accepted IMO as dietary fiber for labeling purposes. If a product's fiber count comes entirely from IMO, the actual benefit is probably close to zero
The ingredient behind the fiber number matters as much as the number itself. Soluble corn fiber, inulin, chicory root, and allulose are backed by real data. IMO is the one most likely doing less than it claims. None of these replace vegetables, legumes, and whole grains — but functional fibers as a category are not automatically something to avoid.
Putting It All Together
Here is how to actually use this information without overhauling your entire life at once.
The most common mistake people make after reading something like this is trying to change everything at the same time. They cut sugar, add fish, buy turmeric, order bloodwork, and sign up for a DEXA scan in the same week. Then they burn out and go back to what they were doing before. That is not a strategy. That is enthusiasm without a plan.
Here is a better approach.
Start With the Things That Move the Needle the Most
Not everything in this guide has equal impact. Ultra-processed foods and added sugar are at the top of the pro-inflammatory list for a reason. If your diet is currently built around packaged food, fast food, and sweetened drinks, that is where the biggest return is. You do not need to eat perfectly. You need to eat better than you currently do, consistently.
Get Your Numbers
You cannot manage what you cannot measure. An hs-CRP test is inexpensive and available through your primary care doctor or directly through most lab services. Get a baseline. Then make changes and retest in 8 to 12 weeks. That feedback loop is more motivating than any article you will ever read.
My preferred tests are hs-CRP, Fibrinogen and MPO.
Fix Fiber First
If you do nothing else from the diet side of this guide, increasing fiber intake is the single change with the broadest downstream effect. It improves the gut barrier. It lowers CRP. It supports metabolic flexibility. It feeds the bacteria that regulate immune function. And it does not require you to give anything up. Just add it. Vegetables with every meal, legumes a few times a week, whole grains over refined ones. Most people go from eating 12 to 15 grams of fiber per day to 25 to 30 grams just by making those three swaps.
Audit Your Fats, Not Just Your Calories
Swap refined seed oils in your cooking for olive oil or avocado oil. Add two servings of fatty fish per week. These changes shift the omega-6 to omega-3 ratio in a direction that directly affects the inflammatory pathways covered in the physiology section. It is not complicated. It is just specific.
Do Not Ignore The Non-Diet Variables
If you are eating well but sleeping five hours a night, you are fighting uphill. If your training load is high and your recovery is poor, the diet improvements will be partially offset by the inflammatory signal coming from overtraining. Sleep, stress, and recovery are not soft variables. They are in the same category as everything in this guide. Treat them the same way.
Track Trends, Not Perfection
One bad meal does not matter. One bad week barely matters. What matters is the average over months. Chronic inflammation is a chronic problem. It responds to chronic inputs. Your job is not to be perfect. It is to shift the average in the right direction and hold it there.
Want a clearer picture of how inflammation, recovery, and performance connect for you specifically? Human Body Lab testing services including VO₂ max, RMR, and movement screening are built to find where you are losing ground and fix it. Reach out at coachvolkoff@gmail.com or humanbodylab.com.
References
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- Baxter, N. T., et al. (2019). Dynamics of human gut microbiota and short-chain fatty acids in response to dietary interventions with three fermentable fibers. mBio, 10 (1). https://doi.org/10.1128/mBio.02566-18
- Zhao, Y., et al. (2022). Effects of dietary fiber on inflammatory markers: A systematic review and meta-analysis. Nutrients, 14 (21), 4471. https://doi.org/10.3390/nu14214471
- Tap, J., et al. (2025). Dietary fiber intake and systemic inflammation in the UK Biobank cohort. European Journal of Nutrition. Advance online publication.
- Monteiro, C. A., et al. (2019). Ultra-processed foods: What they are and how to identify them. Public Health Nutrition, 22 (5), 936-941. https://doi.org/10.1017/S1368980018003762
- World Health Organization. (2023). No level of alcohol consumption is safe for our health. https://www.who.int/news/item/04-01-2023
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