Is the Keto Diet Good for Menopausal Women?

The keto diet has gained popularity as a weight management tool, and many menopausal women are wondering whether cutting carbs could help with experiences like weight gain, brain fog, and fatigue. The answer is not a simple yes or no. A ketogenic diet can offer specific benefits during menopause, but it also carries risks that deserve honest discussion.

What is the keto diet?

The ketogenic diet is a high-fat, very low-carbohydrate eating pattern that shifts the body's primary fuel source from glucose to ketones, which are produced from stored fat. A review by Masood et al. (2023, StatPearls) describes a typical keto diet as consisting of 55 to 60% fat, 30 to 35% protein, and only 5 to 10% carbohydrates.

For most people, that means keeping daily carb intake below 20 to 50 grams, which eliminates most grains, fruits, starchy vegetables, and sugars.

Potential benefits of keto during menopause

Some aspects of the keto diet align well with the metabolic challenges of menopause.

Weight management

Declining estrogen during menopause shifts fat storage toward the midsection and slows metabolism. A large study from the Women's Health Initiative (Ford et al., 2017), which followed nearly 89,000 postmenopausal women aged 49 to 81, found that a reduced-carbohydrate diet was inversely related to weight gain (OR 0.71), while low-fat and standard dietary guidelines diets were associated with increased weight gain. A 2023 narrative review in Current Obesity Reports (Camajani et al.) confirmed that ketogenic protocols in postmenopausal women with overweight or obesity promote reduction of total body weight and visceral adipose tissue while preserving lean mass.

The WHI study defined "low carbohydrate" as 163 grams per day, which is far less restrictive than a true keto diet (under 50 grams). The benefits of carbohydrate reduction may not require the strictest keto approach.

Blood sugar stabilization

Insulin sensitivity tends to decline during menopause. Healthline notes that a 2020 research review suggests the keto diet may improve insulin sensitivity and blood sugar levels in people with type 2 diabetes, and that insulin resistance may be linked to a higher risk of hot flashes. The Camajani et al. review confirmed that ketogenic diets reduce fasting glycemia, fasting insulin, and improve insulin resistance.

Cognitive clarity

Some women report improved mental clarity on a keto diet. Ketones are an efficient fuel source for the brain, and if you're experiencing menopause-related brain fog, you may notice a difference when the brain has access to this alternative fuel. The Camajani et al. review noted neuroprotective properties of ketone bodies, though specific research on menopausal cognitive changes and keto remains limited.

Reduced inflammation

The Camajani et al. review highlighted that beta-hydroxybutyrate (a ketone body) inhibits NLRP3/inflammasome activation and reduces pro-inflammatory cytokine secretion, which is particularly relevant given that inflammation tends to increase during menopause. A well-formulated keto diet emphasizing whole foods, healthy fats, and vegetables supports this anti-inflammatory effect.

Risks and drawbacks of keto during menopause

Keto is not without trade-offs, especially for women in their 40s and beyond.

Bone health concerns

A research from 2020 study linking ketosis with loss of bone density in 30 athletes over 3.5 weeks, with decreased new bone growth and increased bone breakdown. The authors noted that even after returning to regular diets, the ability to create healthy new bone did not return to normal. Since menopause already accelerates estrogen-related bone loss, this is a real concern. Ensuring adequate calcium, magnesium, and vitamin D intake is essential if you're considering keto.

Heart health risks

Healthline reports that a small study in healthy women found that following a low-carb, high-fat diet for just three weeks increased both total and LDL ("bad") cholesterol levels, with many participants exceeding cardiovascular prevention targets. Since menopause itself increases cardiovascular risk due to declining estrogen, this deserves careful monitoring. The types of fat you consume matter. Prioritizing olive oil, avocados, nuts, and fatty fish over butter, cream, and processed meats makes a meaningful difference.

Nutrient gaps

A 2021 research review cited by Healthline found that low-carb diets may not provide enough vitamins A, E, and K, along with calcium, magnesium, iron, and fiber. Menopausal women already have higher needs for several of these nutrients, so careful meal planning or supplementation is necessary.

Sustainability

Many women find strict keto difficult to maintain long-term. The restriction can feel isolating socially and may contribute to an unhealthy relationship with food, particularly if you're already navigating body image changes during menopause. A less rigid approach may be more sustainable and equally effective.

A balanced approach: low carb without going full keto

For many menopausal women, a moderate low-carb diet (around 50 to 100 grams of carbs daily) offers many of the same benefits as keto without the strict limitations. The WHI study's finding that even a 163-gram carb limit reduced weight gain risk supports this more moderate path.

Keeping complex carbohydrates like sweet potatoes, quinoa, and berries while reducing refined carbs and sugar supports blood sugar balance, gut health, and hormonal function. Eating with hormonal phases in mind is another way to optimize nutrition during this transition. Even in menopause, your body benefits from nutritional variety rather than rigidly restricting entire macronutrient groups.

The Mediterranean diet, which Medical News Today notes was associated with higher bone density and muscle mass in postmenopausal women in a 2021 study, offers a well-researched alternative that supports cardiovascular health, reduces inflammation, and provides the nutrient density menopausal women need.

Supporting the brain alongside diet changes

Diet is one piece of the menopause puzzle. The brain plays a central role in how experiences are felt, from mood regulation to cognitive function to stress processing. Pairing nutritional changes with brain-supporting practices like breathwork and meditation creates a more complete approach.

Samphire Neuroscience takes a brain-first approach to hormonal health. Nettle™, a CE-marked Class IIa medical device available in the UK and EU, is clinically proven to reduce menstrual pain and relieve low mood through non-invasive brain stimulation. For women in the US and globally, Lutea™ is a general wellness device designed to support focus, emotional regulation, and well-being throughout the cycle, offering hormone-free, drug-free support that works alongside any dietary approach.

Should you try keto during menopause?

The keto diet can benefit some menopausal women, particularly those dealing with insulin resistance, weight gain, or brain fog. However, it is not the right choice for everyone. If you have a history of eating disorders, thyroid issues, kidney disease, or bone density concerns, proceed with caution and medical guidance.

The most effective approach is one that is sustainable, nutrient-dense, and paired with movement, stress management, and brain-first wellness support. A registered dietitian who understands menopause can help tailor the approach to your individual needs.