Menopause doesn't just affect hormones: it changes how the body manages glucose, blood fats, and muscle itself. This guide on omega-3 in menopause explains what research shows — and what it doesn't yet show — about EPA and DHA at this stage, and how to fit them alongside strength training and diet.
Less lean mass, on average, in postmenopausal women compared to those who have not yet entered menopause, according to a review published in 2026.
Of EPA and DHA per day: the intake associated with maintaining normal blood triglyceride levels.
What changes in metabolism during menopause
The transition to menopause is also a metabolic transition. Understanding what is happening in muscle, blood, and adipose tissue helps to choose where it is worth investing energy — and where omega-3 actually enters the equation.
With the decrease in ovarian function, estradiol—the main form of estrogen produced before menopause—drops. This estrogen participates in glucose regulation and muscle insulin sensitivity. Skeletal muscle is the primary destination for glucose that insulin shuttles into cells after a meal; when it responds poorly to that signal, fasting and post-meal blood glucose levels tend to rise. It is not the only factor, but it is one of the most relevant.
At the same time, body composition changes. Fat tends to shift to the abdominal area and accumulate in places where it interferes with insulin signaling, including within the muscle itself. The lipid profile also changes—triglycerides usually rise—and several studies describe an increase in pro-inflammatory messengers, such as IL-1, IL-6, and TNF-α, as ovarian function decreases. Muscle is not a bystander: it functions as an organ that communicates with the rest of the body through its own molecules, myokines.
Less efficiency in managing sugar
With less estradiol, muscle takes up glucose less easily after meals.
Lean mass in decline
About -2.5% in perimenopause and -5.7% in postmenopause, compared to premenopause.
Triglycerides rising
The lipid profile changes and fat shifts to the abdomen.
In this article, the reader will learn what EPA and DHA are, what omega-3 is used for at this stage according to available evidence, which are the four pillars that weigh most on metabolism after age 45–50, and how to choose an omega-3 supplement with discernment, without unrealistic expectations.
Omega-3 in menopause: what the evidence shows
When talking about the benefits of omega-3, we are primarily talking about two long-chain fatty acids: EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). The main food source is fatty fish—sardines, mackerel, herring, salmon—and, as a supplement, fish oil, krill oil, and cod liver oil.
Once ingested, EPA and DHA integrate into cell membranes and compete with an omega-6 fatty acid, arachidonic acid, altering the balance of the lipid mediators that result from it. It is through this pathway, and the way the liver processes fats, that many of the studied effects are explained. Still, not all mechanisms are clarified—and it is important to separate what is well established from what is merely promising.
Triglycerides
A meta-analysis of randomized trials in postmenopausal women observed an average drop in triglycerides of 17.8 mg/dL with omega-3 supplementation. The effect was more marked with amounts starting at 1 g per day and in women starting with higher values.
Muscle mass and synthesis
A systematic review with meta-analysis found no effect of omega-3 on the rate of muscle protein synthesis. There was a modest signal for whole-body protein synthesis, which is not muscle-specific and is not equivalent to gaining muscle mass.
EPA and DHA: a supporting role for the metabolic environment
In the same meta-analysis, slight increases in HDL and LDL fractions were also recorded—a reminder that the lipid profile should be monitored via blood tests and interpreted with a doctor, rather than just looking at a single number. The decrease in triglycerides seems to result mainly from a lower production of fat-rich particles by the liver, although the exact mechanism is not fully understood.
A 16-week trial in overweight postmenopausal women between 55 and 70 years old helps put the pieces in place. The DHA-rich supplement was associated with lower triglycerides, lower diastolic blood pressure, and better muscle quality in the lower limbs. Improvements in glucose tolerance, however, were due to the strength training program, not the supplement—and there was no added effect between the two.
The most honest reading is this: omega-3 in menopause acts primarily as support for the cardiometabolic environment, while strength training and protein are the primary levers for muscle and glucose management.
Limitations to consider. Trials generally include small groups, short durations (up to 16 weeks), different doses and formulations, and, often, overweight women. Data on lean mass comes primarily from DXA measurements, which may underestimate muscle changes. These are useful results, but not definitive.
Four pillars to support metabolism during menopause
No single nutrient compensates for the changes of this phase. What evidence suggests is a simple combination, repeated with consistency.
Strength training
It is the lever with the most impact on glucose uptake by muscle and on muscle function after menopause.
Work legs, back, and chest several times a week, increasing the load progressively.
Well-distributed protein
With age, a woman's muscle may respond less intensely to ingested protein. Distribution throughout the day becomes more important.
Include a portion of protein in each main meal, rather than concentrating it only at dinner.
Sufficient EPA and DHA
Fatty fish is the main source. When it appears infrequently on the plate, an omega-3 supplement is a practical way to boost intake.
On the label, count the milligrams of EPA + DHA per dose, not the total fish oil.
Overall quality and sleep
Fiber, good quality fats, and fewer ultra-processed foods influence insulin sensitivity and body composition. Rest also counts.
Legumes, vegetables, whole fruit, and olive oil as a base; regular sleep schedule.
The foundation first, then the goals
EFSA establishes 250 mg daily of EPA and DHA as an adequate intake for adults. This is the base to ensure through fatty fish or a supplement. Amounts close to 2 g per day make sense when there is a concrete goal, such as maintaining normal blood triglyceride levels, and should be coordinated with a healthcare professional.
According to EFSA, supplements with up to 5 g daily of combined EPA and DHA do not raise safety concerns in adults.
Omega-3 in daily life: practical examples
The most common doubts about omega-3 are repeated from person to person. These are some frequent scenarios and the most sensible way to address them.
Scenario 1
You eat sardines or mackerel frequently
The baseline for EPA and DHA may already be covered. The supplement becomes optional, and the focus should shift to strength training and protein.
Scenario 2
You almost never eat fish
Here, an omega-3 supplement makes more sense. The starting point is to reach at least 250 mg daily of EPA and DHA.
Scenario 3
Fish oil, krill, or cod liver oil?
All provide EPA and DHA, in different amounts. Cod liver oil also provides vitamins A and D, which should be added to those from other supplements.
Scenario 4
Blood tests show higher-than-usual triglycerides
The first step is to talk to your doctor. The 2 g daily reference for EPA and DHA can be discussed as a supplement, never as a substitute for medical monitoring.
Scenario 5
You have started strength training
It is the best decision for your muscles. Omega-3 does not replace it; sufficient protein and, after age 55, creatine can complement training.
Scenario 6
You are taking anticoagulants or are about to undergo surgery
Before taking high amounts of EPA and DHA, it is essential to talk to your doctor, who may adjust the intake or suggest a pause.
Before supplementing, talk to your doctor first if…
- you regularly take anticoagulants, antiplatelets, or other medication;
- you have a surgery or procedure scheduled;
- you are allergic to fish or shellfish (krill is a crustacean);
- your blood tests show altered values or you are undergoing hormone therapy;
- any bleeding occurs after 12 months without a period;
- symptoms of menopause are significantly affecting your daily life.
Omega-3 and complementary supplements: choose with discernment
Dietary supplements are a complement. They do not replace a varied and balanced diet, adequate sleep, regular physical activity—especially strength training—or the guidance of a healthcare professional when necessary. Chosen well, they can help close specific gaps.
UnoCardio X2 · Omega-3
WHC · Fish oil in natural triglyceride form, with vitamin D3
Why it can help
Each capsule provides 635 mg of EPA and 400 mg of DHA. EPA and DHA contribute to the maintenance of normal blood triglyceride levels; the beneficial effect is obtained with a daily intake of 2 g of EPA and DHA. Given the stated composition, two capsules provide approximately 2 g. EPA and DHA also contribute to the normal function of the heart (with 250 mg daily) and vitamin D contributes to the maintenance of normal muscle function.
How to use
Follow the intake indicated on the label, preferably with a meal. Amounts close to 2 g daily of EPA and DHA should be coordinated with a healthcare professional, especially in case of medication use. Do not exceed 5 g daily of EPA and DHA from supplements and take into account the vitamin D3 already included in the formula.
Creatine
Auri Foods · Creatine monohydrate, 300 g
Why it can help
Daily creatine intake can enhance the effect of resistance training on muscle strength in adults over 55. The effect is obtained with 3 g daily, combined with regular strength training, with progressive load increase, at least three times a week.
How to use
3 g per day, dissolved in water or juice, consistently. In case of kidney issues or medication, talk to your doctor first.
Magnesium bisglycinate
Ecogenetics · 120 capsules
Why it can help
Magnesium contributes to normal protein synthesis and normal muscle function. It also contributes to the reduction of tiredness and fatigue. Bisglycinate is a form of magnesium bound to glycine, which is usually well-tolerated.
How to use
Two to three capsules per day, with meals, according to the label. Do not exceed the recommended daily intake.
Vitamin D3 2000 IU
NOW Foods · Liquid Vitamin D3
Why it can help
Vitamin D contributes to the maintenance of normal muscle function and the maintenance of normal bones — two priorities at a stage when lean mass tends to decrease.
How to use
Follow the intake indicated on the label, preferably with a meal containing fat. Ideally, assess your levels with a doctor and add up the vitamin D from other supplements, such as UnoCardio X2.
Food supplements are not a substitute for a varied and balanced diet or a healthy lifestyle. Do not exceed the recommended daily intake. Keep out of reach of children. In case of medication or a clinical condition, consult a healthcare professional.
Frequently asked questions
What is omega-3 for in menopause?
EPA and DHA contribute to normal heart function, with a daily intake of 250 mg, and to the maintenance of normal blood triglyceride levels, with 2 g daily. In menopause, the most consistent research concerns exactly these triglycerides. Omega-3 is a support; it does not replace strength training or a balanced diet.
What is the difference between EPA and DHA?
Both are long-chain omega-3 fatty acids. DHA is a structural component of the brain and retina: it contributes to the maintenance of normal brain function and normal vision, with 250 mg of DHA daily. EPA and DHA, together, contribute to normal heart function. In a supplement, it is important to check the amount of each per dose.
Fish oil or krill oil: which to choose?
Both provide EPA and DHA. More than the origin, it is advisable to compare the milligrams of EPA + DHA per dose, the existence of independent purity certifications, and the freshness of the oil. Those with a shellfish allergy should avoid krill oil, which comes from a crustacean.
Does omega-3 help maintain muscle mass after menopause?
Current evidence does not confirm this: a meta-analysis found no effect of omega-3 on muscle protein synthesis. For muscle, the most solid tools are strength training and well-distributed protein. From age 55 onwards, creatine can enhance the effect of resistance training on muscle strength.
Sources
Scientific and institutional publications consulted for this article.
In menopause, metabolism does not ask for quick fixes: it asks for muscle, good food, and consistency.
Menopause brings a real change in how the body manages glucose, fats, and muscle mass. It is not a fixed destination, but it is also not solved with a single supplement. Evidence points to a clear hierarchy: strength training and protein first, a quality diet as a base, and omega-3 as support, especially when oily fish appears rarely on the table.
Used with discretion — looking at the milligrams of EPA and DHA, the quality of the oil, and each person's context — omega-3 in menopause finds its place: that of a useful supplement, without exaggerated promises.
In summary
The most consistent contribution of EPA and DHA at this stage is regarding triglycerides. For muscle and glucose, strength training remains the main lever.
Explore omega-3 supplements
- Formulas with EPA and DHA indicated per dose
- Reference brands and purity certifications
- Clear information on each product
Viva Saudável gathers a selection of fish oils, krill oil, and combined formulas.
Explore supplementsThis article is for informational purposes only and does not replace the advice of a doctor or other healthcare professional. Before starting any supplement, especially in case of medication or a clinical condition, you should seek professional guidance.
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