Anti-Inflammatory Diet vs Volumetrics
A side-by-side comparison — no verdict on which is "better," just how they differ.
Anti-Inflammatory Diet
A loosely defined, Mediterranean-style eating pattern built around foods linked to lower inflammation markers. No official plan, governing body, or calorie target, and different sources publish different food lists.
View full Anti-Inflammatory Diet page →Volumetrics
Organizes eating around a food’s energy density (calories per gram) rather than restricting any food group — building meals around lower-density, water- and fiber-rich foods to feel full on fewer calories.
View full Volumetrics page →Key Differences
These two are close on paper, so the differences are smaller than in most pairs.
- One works on calories and one doesn't. Volumetrics lowers calories by favoring foods with fewer calories per bite, and Anti-Inflammatory leaves calories alone.
- Anti-Inflammatory rests on limited evidence. Volumetrics has a moderate evidence base.
What They Share
Both lean on vegetables, fruit, whole grains, and beans and lentils. Neither one bans a food outright.
Typical Foods
Anti-Inflammatory DietTomatoes, olive oil, leafy greens, nuts, fatty fish (salmon, mackerel, sardines), berries and other fruit, whole grains, legumes, herbs and spices.
VolumetricsVery-low-density: broth-based soups, non-starchy vegetables, most fruit. Low-density: starchy vegetables, whole grains, legumes, low-fat dairy, lean protein — the everyday staples.
Foods to Avoid
Anti-Inflammatory DietRefined carbohydrates, fried foods, sugar-sweetened drinks, red and processed meat, margarine/shortening/lard. These are limited, not banned outright.
VolumetricsNone eliminated — higher-density foods (nuts, seeds, dried fruit, oils and butter, chips, chocolate, cookies) are enjoyed in smaller amounts, not banned.
Eating Pattern
Anti-Inflammatory DietNo specific eating window. A food-quality framework, not a timed or calorie-counted plan.
VolumetricsNo specific eating window — organized around food energy density, not timing.
Primary Goal
Anti-Inflammatory DietLowering chronic, low-grade inflammation and associated chronic disease risk.
VolumetricsWeight loss via increased fullness/satiety per calorie.
Best For
Anti-Inflammatory DietPeople who want a flexible, food-quality pattern without counting and like the general shape of Mediterranean-style eating.
VolumetricsPeople who find restriction-based dieting hard to sustain because they end up hungry, and who like understanding the “why” behind a recommendation.
Macro Emphasis
Anti-Inflammatory DietNone built in. No calorie or macro structure; total calories still determine weight change.
VolumetricsNone — organized around energy density (calories per gram), not macro ratios.
Health Condition Relevance
Anti-Inflammatory DietAssociated (observationally) with lower risk of heart attack, all-cause mortality, and some cancers via the Dietary Inflammatory Index; Mediterranean-diet RCTs show modest drops in CRP and IL-6. Not a treatment for any specific inflammatory condition.
VolumetricsNot tied to a specific health condition — a general weight-loss/satiety focus.
Evidence Strength
Anti-Inflammatory DietLimited-to-moderate. Large but mostly observational evidence (only 1 of 38 outcomes graded "convincing" in a 2021 umbrella review); trial evidence comes from Mediterranean-diet studies, not the diet as its own named plan.
VolumetricsModerate. A decades-long Penn State research program (Dr. Barbara Rolls) shows lower energy density reduces calorie intake, and a year-long trial in 97 women found adding fruit and vegetables to a reduced-fat diet led to more weight loss and less hunger. A 2022 meta-analysis found no significant weight effect, and long-term results are inconsistent.
Restrictiveness
Anti-Inflammatory DietLow. Food-quality guidance with limits rather than hard exclusions.
VolumetricsLow — no foods eliminated, just density-tier awareness; requires some ongoing attention to food composition rather than fixed rules.
Cost / Accessibility
Anti-Inflammatory DietSimilar to the Mediterranean diet. May be less practical on tight food budgets or with limited access to fresh produce and fish.
VolumetricsBuilt on inexpensive, widely available staples (produce, whole grains, legumes, broth-based soups, lean protein) with no specialty products required, making it one of the more budget-friendly structured approaches.
Nutrients to Watch
Anti-Inflammatory DietNot studied. No research has measured nutrient gaps on a named anti-inflammatory diet. The similar Mediterranean pattern is linked with better overall nutrient intake.
VolumetricsNo gaps are documented. Low-energy-density diets are linked with higher intake of vitamins A, C, and B6, folate, iron, calcium, and potassium.
Adjustment Period
Anti-Inflammatory DietLittle is known. More beans and fiber may cause some gas at first.
VolumetricsLittle is known. In its main year-long trial, the group eating more fruit and vegetables reported less hunger, not more.
A Sample Day
Anti-Inflammatory DietBreakfast: oatmeal with blueberries, walnuts, and ground flax, with green tea. Lunch: leafy-green salad with chickpeas, tomatoes, and olive oil, with whole-grain pita. Dinner: baked salmon or sardines with roasted vegetables and brown rice. Snack: an apple and a few almonds.
VolumetricsBreakfast: oatmeal with berries and a hard-boiled egg. Lunch: broth-based vegetable soup, then a turkey sandwich on whole-grain bread with lettuce and tomato. Dinner: big green salad, grilled fish, brown rice, and roasted vegetables. Snack: grapes with nonfat Greek yogurt.
Prep and Eating Out
Anti-Inflammatory DietModerate prep, similar to Mediterranean: fresh produce, fish, and legumes with no tracking. Easy to eat out, since grilled fish, salads, and vegetable dishes are common.
VolumetricsLow to moderate prep, since soups and salads can be made in batches and nothing is tracked. Easy to eat out: start with a broth-based soup or salad and fill up on vegetables.
Talk to a Clinician First If
Anti-Inflammatory DietIt is not a treatment for inflammatory conditions; in a trial in rheumatoid arthritis, the main result was not significant. Warfarin users should keep leafy-green intake steady. During pregnancy and for children, choose lower-mercury fish.
VolumetricsNot studied. No specific cautions have been published for Volumetrics.
Sticking With It and Stopping
Anti-Inflammatory DietNot studied over the long term. The only trial ran for 10 weeks with much of the food provided, and most participants completed it. There is no data on what happens after stopping.
VolumetricsIn its year-long trial, about 73% of participants finished. In a small seven-month trial, a low-energy-density diet reduced weight regain after weight loss. Over the long term, lower-density diets have not consistently produced more weight loss than calorie restriction alone.
Educational only, not medical advice. Want to compare a different pair? Back to Diet Arena.