Inflammaging: How Chronic Inflammation Accelerates Aging

Of all the things that go wrong with age, one of the most universal — and most treatable — is inflammaging: the chronic, low-grade, sterile inflammation that rises quietly over decades and underlies most age-related disease. Heart disease, Alzheimer's, cancer, type 2 diabetes, osteoarthritis, frailty — inflammaging is a common thread through all of them.

The term was coined in 2006 by Italian immunologist Claudio Franceschi, and inflammaging was promoted to a full hallmark of aging in 2023. It's now considered one of the most actionable hallmarks — because unlike, say, genomic instability or telomere attrition, you can move your inflammation markers substantially with lifestyle and a handful of targeted supplements.

This guide explains what inflammaging is, where it comes from, how to measure it, and what actually works to reduce it.

What is inflammaging?

Inflammaging is short for "inflammatory aging" — the chronic, low-grade, sterile (i.e., not caused by an infection) inflammation that increases with age. It's different from acute inflammation (the redness and swelling around a cut or a sprained ankle), which is short-lived and helpful. Inflammaging is smoldering, systemic, and harmful.

On blood tests, inflammaging shows up as elevated levels of inflammatory cytokines — particularly CRP (C-reactive protein), IL-6 (interleukin-6), TNF-α (tumor necrosis factor alpha), and the cytokine IL-1β. These are the same molecules that surge during a flu or infection — but in inflammaging, they're chronically elevated at low levels, never quite returning to baseline.

The consequences aren't subtle. People in the top quartile of CRP have roughly 2–3x the cardiovascular risk of those in the bottom quartile. Elevated IL-6 is one of the strongest predictors of disability and mortality in older adults. Inflammaging isn't a minor biomarker — it's a major driver of how fast you age.

Where inflammaging comes from

Inflammaging has multiple sources, all of which conspire together:

• Senescent cells — old, non-dividing cells that secrete pro-inflammatory cytokines (the SASP, senescence-associated secretory phenotype). The number of senescent cells rises with age. See our hallmarks guide.
• Visceral fat — abdominal fat tissue is metabolically active and secretes IL-6, TNF-α, and other inflammatory adipokines. This is why overweight and obesity are pro-inflammatory states.
• Gut dysbiosis — age-related changes in the gut microbiome increase gut permeability ("leaky gut") and let bacterial fragments (lipopolysaccharide, LPS) into the bloodstream, where they trigger immune activation. See our gut health guide.
• Chronic infections — latent viruses like cytomegalovirus (CMV), herpesviruses, and periodontal bacteria keep the immune system chronically activated.
• Cellular debris — damaged proteins, oxidized lipids, and other "garbage" that accumulates with age triggers immune recognition and inflammation.
• Chronic stress — elevated cortisol disrupts immune regulation, leading to paradoxically higher inflammation. See our stress guide.
• Poor sleep — sleep deprivation raises CRP and IL-6. See our sleep guide.
• Western diet — ultra-processed foods, refined sugar, industrial seed oils, and excess omega-6 are all pro-inflammatory.

How inflammaging drives age-related disease

Inflammaging contributes to nearly every age-related disease:

• Cardiovascular disease — inflammation drives plaque formation in arteries; elevated CRP predicts heart attack risk independent of cholesterol.
• Alzheimer's and cognitive decline — neuroinflammation is now considered a central driver of dementia, not just a consequence of amyloid plaques.
• Cancer — chronic inflammation promotes DNA damage, angiogenesis, and tumor growth.
• Type 2 diabetes — inflammation impairs insulin signaling, driving insulin resistance.
• Sarcopenia and frailty — inflammation accelerates muscle protein breakdown and suppresses muscle synthesis.
• Osteoarthritis — joint inflammation drives cartilage degradation.
• Immune decline (immunosenescence) — chronic inflammation paradoxically impairs acute immune responses, leaving older adults vulnerable to infections.

The unifying insight: most age-related diseases aren't separate conditions — they're downstream consequences of the same upstream processes, of which inflammaging is a major one. Target inflammaging, and you reduce risk across many diseases at once.

How to measure inflammaging

The most accessible blood markers:

• hs-CRP (high-sensitivity C-reactive protein) — the most commonly ordered inflammation test. Optimal: <1.0 mg/L. Borderline: 1.0–3.0. High: >3.0. Available on any standard blood panel.
• IL-6 — a more direct measure of inflammaging. Rises with age. Available through specialty labs.
• TNF-α — another core inflammaging cytokine. Often tested alongside IL-6.
• Ferritin — elevated ferritin (in the absence of iron overload) can indicate inflammation.
• Fibrinogen — an acute-phase reactant; elevated in chronic inflammation.
• Albumin — a negative acute-phase reactant; lower albumin can indicate inflammation.
• GlycA — a newer composite marker of glycosylated acute-phase proteins; very stable and predictive.

For most people, hs-CRP is the most useful single marker. Get it on routine bloodwork and track it over time. If you want a deeper inflammation panel, ask your doctor for IL-6, TNF-α, and GlycA.

Reduce inflammaging: lifestyle levers

The lifestyle factors that lower inflammaging are the same ones that improve every other hallmark of aging:

• Lose visceral fat — if you're overweight, especially around the waist, this is the single biggest lever. Even 5–10% weight loss meaningfully drops CRP and IL-6.
• Mediterranean or plant-forward diet — multiple randomized trials show Mediterranean eating lowers CRP and IL-6. See our diet guide.
• Regular exercise — both cardio and resistance training lower chronic inflammation. Acute exercise raises inflammation transiently; chronic exercise lowers it. See our exercise guide.
• Sleep 7–9 hours — sleep deprivation reliably raises CRP and IL-6 within days. See our sleep guide.
• Stress reduction — meditation, breathwork, social connection, and time in nature all lower inflammation markers. See our stress guide.
• Don't smoke, limit alcohol — both are potently pro-inflammatory.
• Time-restricted eating — gives the gut and immune system a daily rest. See our fasting guide.
• Dental hygiene — periodontal disease is a major source of systemic inflammation. Floss.

Reduce inflammaging: supplements

Several supplements have decent evidence for lowering inflammation markers:

• Omega-3 (EPA + DHA) — the most well-supported anti-inflammatory supplement. Aim for 1–2 g combined EPA+DHA daily. We like Nordic Naturals Ultimate Omega:

• Curcumin (with piperine/black pepper) — multiple trials show curcumin lowers CRP and IL-6. Needs piperine or a liposomal formulation for absorption.

• NAC (N-acetyl cysteine) — precursor to glutathione, the body's master antioxidant. Lowers inflammation and supports liver health.

• Collagen peptides — supports joint and gut lining, with modest anti-inflammatory effects. See our joint supplements guide.

Other anti-inflammatory supplements worth considering: ginger, boswellia, fish oil, vitamin D (if deficient), magnesium, and astaxanthin. We don't recommend piling all of these on at once — pick 2–3, track CRP, and see what works for you.

A simple inflammaging-reduction protocol

If your CRP is elevated, here's a simple framework to bring it down:

1. Measure — get hs-CRP on routine bloodwork. If >2.0 mg/L, take action.
2. Address visceral fat — if your waist circumference is high, prioritize weight loss through diet and walking.
3. Fix the foundation — Mediterranean diet, 7–9 hours sleep, regular exercise, stress reduction.
4. Add omega-3 — 1–2 g EPA+DHA daily. Re-test CRP in 3 months.
5. Consider curcumin or NAC — if CRP is still elevated, add one or both.
6. Re-test at 6 months — inflammation markers respond to lifestyle within weeks to months. You should see meaningful change.

If CRP stays elevated despite optimal lifestyle, consider working with a doctor to investigate underlying causes (autoimmune conditions, chronic infections, dental issues, hidden malignancies).

Foods that fight inflammaging

The dietary patterns that reduce inflammaging overlap heavily with the Mediterranean diet and the MIND diet. Specific anti-inflammatory foods worth emphasizing:

• Fatty fish — salmon, sardines, mackerel, anchovies. Best whole-food source of EPA and DHA. Aim for 2–3 servings per week.
• Extra-virgin olive oil — oleocanthal, a compound in fresh olive oil, has ibuprofen-like anti-inflammatory effects. 2–4 tablespoons/day is the Mediterranean benchmark.
• Leafy greens — spinach, kale, arugula, swiss chard. Packed with polyphenols, folate, and magnesium.
• Berries — blueberries, blackberries, raspberries, strawberries. Anthocyanins lower inflammatory markers.
• Cruciferous vegetables — broccoli, Brussels sprouts, cabbage. Sulforaphane is a potent Nrf2 activator (the body's master antioxidant pathway).
• Nuts — walnuts, almonds, pistachios. Associated with lower CRP in observational studies.
• Turmeric — curcumin is one of the most-studied anti-inflammatory compounds. Pair with black pepper (piperine) for absorption.
• Ginger — gingerol inhibits COX-2 and 5-LOX, the same enzymes targeted by NSAIDs.
• Green tea — EGCG lowers CRP and IL-6 in trials.
• Dark chocolate (85%+) — flavanols lower inflammatory markers. Small daily portions.
• Fermented foods — yogurt, kefir, sauerkraut, kimchi. Lower gut-related inflammation.

Foods to limit: ultra-processed foods, refined sugar, industrial seed oils (soybean, corn, sunflower), processed meats, and excess alcohol. These all reliably raise inflammatory markers within days of increased consumption.

The bottom line

Inflammaging is one of the most universal and most treatable hallmarks of aging. It's driven by visceral fat, senescent cells, gut dysbiosis, chronic stress, poor sleep, and the Western diet — and it shows up on routine bloodwork as elevated CRP, IL-6, and other inflammatory markers. The good news: most of these markers respond substantially to lifestyle within weeks to months. The foundation is free (diet, sleep, exercise, stress). Targeted supplements (omega-3, curcumin, NAC) add incremental benefit.

For the broader framework, see our hallmarks guide, our guide to lowering biological age, and our supplement stack guide.