One of the most common things I hear from patients:
"Doctor, I eat well. I cook at home. Why does my body feel so much older than my age?"
Most of the time, the answer is not what they are eating too much of.
It is what they are not eating enough of.
What science said in 2025 — and why it matters
In February 2025, a landmark clinical trial published in Nature Aging — the DO-HEALTH trial from the University of Zurich — measured something remarkable.
One gram per day of omega-3 supplementation over three years measurably slowed multiple epigenetic aging markers — equivalent to a real, quantifiable reduction in biological age. MVS Pharma
This was not a dietary survey or an association study. It was a randomized controlled trial with objective biological aging clocks, co-authored by Steve Horvath — the scientist who created the epigenetic clock used to measure biological age.
The effects were even stronger when omega-3 was combined with vitamin D and regular physical exercise — each intervention adding to the others in a measurable, additive way. NAD
This is not wellness marketing. This is cell biology with a clinical trial behind it.
What omega-3 is actually doing inside your body
Most people think of omega-3 as a supplement for joint pain or heart health. That is true — but it is only the beginning.
EPA and DHA, the marine forms of omega-3, embed directly into your cell membranes. They serve as building blocks for specialized signaling compounds — resolvins and protectins — that guide inflammatory responses toward resolution rather than allowing them to persist as chronic, low-grade inflammation. MVS Pharma
This matters enormously for aging. The scientific community now has a name for this phenomenon: inflammaging — the slow, silent burn of chronic inflammation that underlies heart disease, dementia, joint degeneration, and metabolic decline.
EPA in particular acts as an endogenous activator of PPARα — a key metabolic regulator — boosting fatty acid oxidation and ATP production in aging organs, effectively helping cells maintain their energy metabolism as they get older. ScienceDirect
Beyond inflammation, the longevity effects extend across multiple systems:
Heart: Omega-3 reduces triglyceride levels, improves endothelial function, and promotes stable electrical activity in the heart. Nature
Brain: DHA makes up approximately 97% of the omega-3 in the brain. It maintains synaptic membrane fluidity and supports the structural integrity of neural tissue across decades of use.
Muscle: Omega-3 enhances mTOR signaling in response to dietary protein — meaning the same protein intake triggers more muscle synthesis. For anyone concerned about sarcopenia and staying strong into their 60s, 70s, and beyond, this is a critical mechanism.
Survival: A study from the Framingham Offspring Cohort found that higher omega-3 levels in red blood cells were as strong a predictor of all-cause mortality as smoking — and that regularly eating oily fish was associated with a nearly five-year increase in life expectancy. ScienceDaily
The Indian advantage most of us are ignoring
Here is what I find both remarkable and underappreciated as a physician practicing in Northeast India.
Our traditional diet already contains some of the richest omega-3 sources in the world. We did not need a supplement industry to tell us this — our grandparents knew it through lived practice.
Hilsa / Ilish — one of the richest sources of EPA and DHA of any freshwater fish, with up to 2,000 mg per 100g serving. A cultural staple in Bengal and the Northeast that happens to be exceptional medicine.
Bangda (mackerel) — affordable, widely available, and packed with approximately 1,800 mg of EPA+DHA per 100g. One of the most underrated fish on any Indian plate.
Rohu and Katla — freshwater fish with a meaningful omega-3 profile, especially when cooked in mustard oil, which itself contains ALA, the plant precursor to EPA and DHA.
Alsi (flaxseed) — one tablespoon ground into your dal, roti dough, or curd delivers over 2,000 mg of ALA. It must be ground, not whole — otherwise it passes through undigested.
Akhrot (walnuts) — five to six halves daily provides meaningful ALA and has been independently associated with cardiovascular and cognitive protection.
Mustard oil — the traditional cooking oil of Bengal and the Northeast is one of the few widely used Indian oils with a notable ALA content. Its continued use in these regions partly explains the relatively better omega-3 status observed in fish-eating communities here.
The problem is not that these foods do not exist. It is that we have drifted away from them — toward refined oils, processed foods, and a dietary pattern that has quietly widened the omega-3 deficit.
The number you should actually know
Dietary intake is a useful guide, but the real measure of your omega-3 status is a blood test called the Omega-3 Index — EPA plus DHA expressed as a percentage of red blood cell fatty acids.
Target: above 8%
The average Indian tests between 3 and 5%.
Research consistently shows that higher omega-3 intake is associated with slowed phenotypic age acceleration — meaning people with better omega-3 status are biologically younger than their chronological age would suggest. PubMed Central
The gap between 3% and 8% is not just a number. It is the gap where chronic inflammation quietly accumulates, where joints begin to degenerate ahead of schedule, where the brain ages faster than it should.
The Omega-3 Index is available through major Indian diagnostic labs. It is a far more meaningful test than asking how many capsules you are taking — because absorption varies enormously based on diet, body composition, and gut health.
How much do you need?
For general health and longevity: 1,000–2,000 mg EPA+DHA daily. For most people eating fatty fish two to three times per week, this is achievable through food alone.
For therapeutic purposes — elevated triglycerides, active inflammation, or significant cardiovascular risk — doses of 2,000–4,000 mg are used clinically, typically requiring supplementation alongside diet.
If you choose a supplement: look for triglyceride form (better absorbed than ethyl ester), third-party tested for heavy metals, and take it with your largest meal of the day. Refrigerate after opening.
But start with food. Always start with food.
What I want for my patients
I went into pain medicine because I kept seeing the same pattern — patients in their 50s and 60s dealing with pain that had been building quietly for decades. Joint degeneration that was preventable. Inflammation that had never been addressed at its root.
Omega-3 is not a cure. But it is one of the most evidence-backed, accessible, and culturally available tools we have for slowing the biology of aging.
The science in 2025 is clearer than it has ever been. The foods are already in our kitchen — or they used to be.
Bring back the Hilsa. Grind the flaxseed. Get your Omega-3 Index checked.
Your future self will move without pain. And age without limits.
Dr. Bindiya Devi | MD | Pain Specialist
Founder, Dr. Fit & Heal — Longevity & Preventive Health
drfitandheal.com
This article is grounded in three key 2024–2025 studies: the DO-HEALTH trial (Nature Aging, 2025), the UK Biobank DHA and mortality analysis (2024, 117,000+ participants), and the Frontiers in Nutrition phenotypic aging and omega-3 cross-sectional study (2024).
"Doctor, I eat well. I cook at home. Why does my body feel so much older than my age?"
Most of the time, the answer is not what they are eating too much of.
It is what they are not eating enough of.
What science said in 2025 — and why it matters
In February 2025, a landmark clinical trial published in Nature Aging — the DO-HEALTH trial from the University of Zurich — measured something remarkable.
One gram per day of omega-3 supplementation over three years measurably slowed multiple epigenetic aging markers — equivalent to a real, quantifiable reduction in biological age. MVS Pharma
This was not a dietary survey or an association study. It was a randomized controlled trial with objective biological aging clocks, co-authored by Steve Horvath — the scientist who created the epigenetic clock used to measure biological age.
The effects were even stronger when omega-3 was combined with vitamin D and regular physical exercise — each intervention adding to the others in a measurable, additive way. NAD
This is not wellness marketing. This is cell biology with a clinical trial behind it.
What omega-3 is actually doing inside your body
Most people think of omega-3 as a supplement for joint pain or heart health. That is true — but it is only the beginning.
EPA and DHA, the marine forms of omega-3, embed directly into your cell membranes. They serve as building blocks for specialized signaling compounds — resolvins and protectins — that guide inflammatory responses toward resolution rather than allowing them to persist as chronic, low-grade inflammation. MVS Pharma
This matters enormously for aging. The scientific community now has a name for this phenomenon: inflammaging — the slow, silent burn of chronic inflammation that underlies heart disease, dementia, joint degeneration, and metabolic decline.
EPA in particular acts as an endogenous activator of PPARα — a key metabolic regulator — boosting fatty acid oxidation and ATP production in aging organs, effectively helping cells maintain their energy metabolism as they get older. ScienceDirect
Beyond inflammation, the longevity effects extend across multiple systems:
Heart: Omega-3 reduces triglyceride levels, improves endothelial function, and promotes stable electrical activity in the heart. Nature
Brain: DHA makes up approximately 97% of the omega-3 in the brain. It maintains synaptic membrane fluidity and supports the structural integrity of neural tissue across decades of use.
Muscle: Omega-3 enhances mTOR signaling in response to dietary protein — meaning the same protein intake triggers more muscle synthesis. For anyone concerned about sarcopenia and staying strong into their 60s, 70s, and beyond, this is a critical mechanism.
Survival: A study from the Framingham Offspring Cohort found that higher omega-3 levels in red blood cells were as strong a predictor of all-cause mortality as smoking — and that regularly eating oily fish was associated with a nearly five-year increase in life expectancy. ScienceDaily
The Indian advantage most of us are ignoring
Here is what I find both remarkable and underappreciated as a physician practicing in Northeast India.
Our traditional diet already contains some of the richest omega-3 sources in the world. We did not need a supplement industry to tell us this — our grandparents knew it through lived practice.
Hilsa / Ilish — one of the richest sources of EPA and DHA of any freshwater fish, with up to 2,000 mg per 100g serving. A cultural staple in Bengal and the Northeast that happens to be exceptional medicine.
Bangda (mackerel) — affordable, widely available, and packed with approximately 1,800 mg of EPA+DHA per 100g. One of the most underrated fish on any Indian plate.
Rohu and Katla — freshwater fish with a meaningful omega-3 profile, especially when cooked in mustard oil, which itself contains ALA, the plant precursor to EPA and DHA.
Alsi (flaxseed) — one tablespoon ground into your dal, roti dough, or curd delivers over 2,000 mg of ALA. It must be ground, not whole — otherwise it passes through undigested.
Akhrot (walnuts) — five to six halves daily provides meaningful ALA and has been independently associated with cardiovascular and cognitive protection.
Mustard oil — the traditional cooking oil of Bengal and the Northeast is one of the few widely used Indian oils with a notable ALA content. Its continued use in these regions partly explains the relatively better omega-3 status observed in fish-eating communities here.
The problem is not that these foods do not exist. It is that we have drifted away from them — toward refined oils, processed foods, and a dietary pattern that has quietly widened the omega-3 deficit.
The number you should actually know
Dietary intake is a useful guide, but the real measure of your omega-3 status is a blood test called the Omega-3 Index — EPA plus DHA expressed as a percentage of red blood cell fatty acids.
Target: above 8%
The average Indian tests between 3 and 5%.
Research consistently shows that higher omega-3 intake is associated with slowed phenotypic age acceleration — meaning people with better omega-3 status are biologically younger than their chronological age would suggest. PubMed Central
The gap between 3% and 8% is not just a number. It is the gap where chronic inflammation quietly accumulates, where joints begin to degenerate ahead of schedule, where the brain ages faster than it should.
The Omega-3 Index is available through major Indian diagnostic labs. It is a far more meaningful test than asking how many capsules you are taking — because absorption varies enormously based on diet, body composition, and gut health.
How much do you need?
For general health and longevity: 1,000–2,000 mg EPA+DHA daily. For most people eating fatty fish two to three times per week, this is achievable through food alone.
For therapeutic purposes — elevated triglycerides, active inflammation, or significant cardiovascular risk — doses of 2,000–4,000 mg are used clinically, typically requiring supplementation alongside diet.
If you choose a supplement: look for triglyceride form (better absorbed than ethyl ester), third-party tested for heavy metals, and take it with your largest meal of the day. Refrigerate after opening.
But start with food. Always start with food.
What I want for my patients
I went into pain medicine because I kept seeing the same pattern — patients in their 50s and 60s dealing with pain that had been building quietly for decades. Joint degeneration that was preventable. Inflammation that had never been addressed at its root.
Omega-3 is not a cure. But it is one of the most evidence-backed, accessible, and culturally available tools we have for slowing the biology of aging.
The science in 2025 is clearer than it has ever been. The foods are already in our kitchen — or they used to be.
Bring back the Hilsa. Grind the flaxseed. Get your Omega-3 Index checked.
Your future self will move without pain. And age without limits.
Dr. Bindiya Devi | MD | Pain Specialist Founder, Dr. Fit & Heal — Longevity & Preventive Health drfitandheal.com
This article is grounded in three key 2024–2025 studies: the DO-HEALTH trial (Nature Aging, 2025), the UK Biobank DHA and mortality analysis (2024, 117,000+ participants), and the Frontiers in Nutrition phenotypic aging and omega-3 cross-sectional study (2024).