Supplement
Spermidine
Spermidine supports autophagy, your body's cellular recycling system that naturally slows with age. Small studies in older adults show promising effects on memory and heart health, though supplement research remains limited. Your best bet is getting spermidine through aged cheeses, fermented vegetables, and other traditional foods that have nourished people for generations.
30-second summary
Spermidine supports autophagy, your body's cellular recycling system that naturally slows with age. Small studies in older adults show promising effects on memory and heart health, though supplement research remains limited. Your best bet is getting spermidine through aged cheeses, fermented vegetables, and other traditional foods that have nourished people for generations.
brain fog — weakcardiovascular health — mixed
Overall: Mixed evidence
Randomised controlled trials
A few small RCTs show potential benefits for memory and cardiovascular markers in older adults, but trials are limited in size and duration.
Population studies suggest higher dietary spermidine intake is associated with longer lifespan and better cardiovascular health.
No comprehensive meta-analyses exist yet due to the limited number of human studies.
Menopause-specific trials
No studies have specifically examined spermidine's effects in perimenopausal or menopausal women.
What we do not know
We don't know the optimal supplement dose for women in perimenopause or menopause. Most studies have been done in older men or mixed populations, not specifically in women experiencing hormonal transitions. We don't know if synthetic spermidine supplements work the same way as food-derived spermidine. Long-term safety data for spermidine supplements is missing. We don't know how spermidine interacts with hormone replacement therapy or other menopause treatments.
How it is used
Common dose range
1-5mg daily
Notes on dosing
Wheat germ extract is the most common source. Also found in aged cheese, mushrooms, and legumes. Very early evidence.
Get it from food first
Food sources are better absorbed than most supplements and come with co-factors that support the same pathways. If you eat two or three of these consistently, you may not need a supplement at all.
Aged cheddar cheese
1 oz
Higher spermidine than younger cheeses
Wheat germ
2 tbsp
Rich source, easy to add to smoothies
Mushrooms
1 cup cooked
Shiitake and maitake particularly good sources
Soybeans
0.5 cup cooked
Fermented forms like natto even higher
Pears
1 medium
Good fruit source with fiber benefits
Green peas
0.5 cup
Fresh or frozen both work well
Mediterranean diet
Naturally includes many spermidine-rich foods like aged cheeses, vegetables, and legumes
Traditional fermented foods
Regular consumption of kimchi, sauerkraut, and aged cheeses provides steady spermidine intake
What depletes Spermidine
Processing and refining foods reduces spermidine content. High sugar intake may interfere with autophagy pathways. Excessive alcohol consumption can impair cellular recycling processes that spermidine supports.
Interactions and cautions
No significant interactions noted at recommended doses.
Rose bottom line
"The research on spermidine is intriguing but still emerging, especially for women our age. Since spermidine-rich foods have been safely enjoyed for centuries and offer other nutrients too, focus on adding aged cheeses, fermented vegetables, and mushrooms to your meals. You're getting cellular support plus the wisdom of traditional foods that have sustained women through every season of life."