By Avni Dalal, ND
When you think about menopause, what comes to mind first? Is it all the hot flashes, sleep changes, and stopped periods? While those symptoms tend to get most of the attention during menopause, some of the most important changes are happening quietly beneath the surface.
As estrogen levels decline, women often experience changes in their body composition, fat distribution, muscle mass, and bone density. These shifts can make maintaining a healthy weight feel more difficult while simultaneously increasing the importance of protecting muscle and bone.
Understanding why these changes happen can make menopause feel a little less mysterious—and help individuals take a more targeted approach to supporting long-term metabolic and skeletal health.
Does Menopause Really Slow Your Metabolism?
Many women notice that maintaining their usual weight becomes harder during their 40s and 50s, even when their eating and exercise habits haven't dramatically changed.
It’s tempting to blame this entirely on a “slower metabolism,” but the science is more nuanced.
A large longitudinal analysis from the Study of Women’s Health Across the Nation (SWAN) found that as women entered the menopause transition, the rate of fat gain approximately doubled while lean mass began to decline. Interestingly, overall body weight did not show the same menopause-specific acceleration, therefore suggesting that body composition may change even when the number on the scale doesn’t change dramatically.1
Another longitudinal study found that women who became postmenopausal experienced increases in visceral abdominal fat alongside declining estradiol levels.2
This matters because muscle is metabolically active tissue. As lean mass declines with age, total daily energy needs may also decrease. At the same time, lower estrogen levels appear to favor a shift toward greater abdominal and visceral fat storage.1-3
So, while menopause may not simply “turn down” metabolism overnight, the combination of aging, declining estrogen, less muscle, changes in fat distribution, sleep disruption, and changes in physical activity can all create a “perfect storm of a metabolic environment” where weight management feels noticeably different.
Why Muscle Matters More Than Ever in Menopause
Gaining and maintaining muscle is about much more than strength. Skeletal muscle helps regulate glucose metabolism, supports insulin sensitivity, contributes to energy expenditure, and protects mobility as we age. Preserving muscle during and after menopause can therefore support both metabolic health and healthy aging.
That makes resistance exercise especially valuable. Research in postmenopausal women supports resistance training for improving strength and physical function, with emerging evidence for beneficial effects on body composition and bone health as well.4,5
Protein also becomes increasingly important with age. Rather than dramatically restricting calories when weight begins to change, redirecting focus on adequate protein and strength training can help preserve the metabolically active tissue women want to keep.
The Other Quiet Change of Menopause: Bone Loss
Changes in body composition may be frustrating, but declining bone density can carry even greater long-term consequences.
Estrogen normally helps regulate the balance between osteoclasts, which break down old bone, and osteoblasts, which build new bone. As estrogen falls, bone resorption can begin to outpace bone formation.
Unfortunately, this process can start even earlier than many women realize.
SWAN data show that measurable bone mineral density loss begins approximately one year before the final menstrual period, with the fastest loss occurring from about one year before to two years afterward.6 Other longitudinal data show that changes in bone structure and strength also accelerate around this transition.7
This is why perimenopause, which is the transitional phase before official menopause, is an important time to think proactively about bone health.
Supporting Metabolism and Bone Health Through Menopause
No supplement regimen can replace broader lifestyle support when wanting to address metabolic and bone health through perimenopause, menopause, and postmenopause.
Regular resistance training helps preserve muscle and provides the mechanical stimulus bones need to remain strong. Weight-bearing activities such as walking, hiking, swimming, stair climbing, and resistance exercise can also support bone health. In SWAN data, greater physical activity during the menopause transition was associated with slower femoral-neck (a section of the thigh bone often used as a marker for bone loss) bone loss.8
Adequate protein, calcium, vitamin D, magnesium, vitamin K, fruits and vegetables, and sufficient overall nutrition provide additional building blocks for muscle and bone.
That makes it particularly interesting after menopause when the body’s own (endogenous) estrogen levels have declined. In a two-year randomized controlled trial of 389 osteopenic women in postmenopause (the period after a woman has gone 12 consecutive months without a menstrual period), daily supplementation of genistein, alongside calcium and vitamin D, was associated with increases in lumbar-spine and femoral-neck bone mineral density compared with placebo.9
From there, targeted supplements can help complement those foundations.
Genistein for Bone Support in Menopause
Genistein is a naturally occurring soy isoflavone classified as a phytoestrogen because it can interact selectively with estrogen receptors.
A meta-analysis also found modest beneficial effects of soy isoflavones on bone mineral density in postmenopausal women, although responses varied by dose, formulation, population, and treatment duration.10
Vital Nutrients Genistein provides targeted phytoestrogen support for women looking to support healthy bones during and after the menopausal transition.*
GLP-1 Complete for Metabolic Support in Menopause
If there is one thing to remind you of again, it is that menopause-related metabolic changes are rarely about willpower alone. Appetite regulation, glucose metabolism, gut signaling, muscle mass, sleep, and activity all contribute.
One pathway involved in metabolic regulation is GLP-1: a gut-derived hormone that helps coordinate satiety, gastric emptying, and postmeal glucose regulation.
Vital Nutrients GLP-1 Complete combines prebiotics, probiotics, postbiotics, and botanical ingredients designed to support the body's natural GLP-1 response, healthy appetite regulation, glucose balance, digestive function, and metabolic health.*
It isn't a replacement for resistance training, adequate protein, sleep, or balanced nutrition. Instead, it can be viewed as an additional layer of metabolic support during a life stage when maintaining healthy body composition may become more challenging.
Other nutrients—including vitamin D, calcium, magnesium, vitamin K2, protein, and potentially creatine—may also be considered depending on diet and individual needs. Creatine is particularly interesting for muscle: A recent meta-analysis found small improvements in lean mass and strength in menopausal women, particularly when doses of at least 5 g/day were paired with resistance training, although effects on bone density still remain to be investigated further.11
Summary: Think Beyond the Scale
Menopause doesn't mean weight gain or bone loss is inevitable. But it does mean the physiology behind maintaining metabolic and skeletal health is changing.
Instead of focusing exclusively on body weight, this stage of life is an opportunity to prioritize muscle, strength, bone density, metabolic health, and healthy body composition.
Resistance training, adequate nutrition, sufficient protein, and targeted nutritional support can help individuals work with these physiological changes rather than fighting against biology by restricting diet and exercising more.
References
1. Greendale GA et al. JCI Insight. 2019;4(5):e124865.
2. Lovejoy JC et al. Int J Obes (Lond). 2008;32(6):949–958.
3. Marlatt KL et al. Curr Opin Endocr Metab Res. 2025.
4. Berin E et al. Menopause. 2023;30(1):44–54.
5. Hernández-Martínez J et al. Climacteric. 2024;27:274–283.
6. Greendale GA et al. J Bone Miner Res. 2012;27(1):111–118.
7. Ishii S et al. Bone. 2019;122:93–100.
8. Greendale GA et al. Lancet Reg Health Am. 2023;21:100481.
9. Marini H et al. Ann Intern Med. 2007;146(12):839–847.
10. Akhlaghi M et al. Crit Rev Food Sci Nutr. 2023;63(24):6715–6727.
11. Naddafha S et al. J Int Soc Sports Nutr. 2026;23(1):2668435.
