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The Healf Source
How Spermidine Supports Longevity And Natural Calm
Written by: Pippa Thackeray
Written on: December 17, 2024
There has been a lot of talk around spermidine recently, making its name for living longer naturally and at peace. Let's explore what gives this molecule such promise in the science of cellular rejuvenation and its potential to delay age-related diseases, all while promoting mental clarity. Some proponents even claim it helps them learn and study to fuel their personal growth.
Introducing spermidine: “Fasting in a bottle”
Spermidine is a naturally occurring compound found in all living cells—plants, animals, and humans alike. It has a big role in terms of maintaining cellular health by supporting autophagy (this is the body’s natural clean-up process). Autophagy works like an internal recycling system, clearing out damaged and dysfunctional cells to make way for regeneration. It is a process that typically ramps up during fasting, but spermidine may offer a more accessible route, often described as “fasting in a bottle.”
The accumulation of damaged, or what are sometimes referred to as “zombie” cells, contributes to inflammation, a key driver of ageing and disease. By triggering autophagy, spermidine helps reduce this cellular clutter, easing inflammation and allowing the body to function more efficiently. So, in essence, it’s not just about living longer but ageing better—allowing the cells to heal and renew.
Spermidine and our genes
Spermidine falls under the title of a “polyamine”, which can be described as a type of organic compound composed of multiple amino groups. Polyamines, including spermidine, are vital for cell growth, DNA stability, and protein synthesis:
Boosts autophagy: Spermidine kick-starts the body’s natural clean-up process by switching on genes like Atg7, Atg15, and Atg11, and preventing protein acetylation, which can get in the way.
Protects DNA: It keeps DNA stable and intact, helping it function properly.
Supports RNA: Spermidine plays a part in processing RNA, making sure the body can read and use its genetic instructions.
Activates proteins: It helps proteins do their jobs effectively in the body.
Encourages healthy cell growth: Spermidine is essential for cells to grow, repair themselves, and develop into specialised types.
Defining spermidine’s role in cellular repair
Spermidine, found in all eukaryotic cells, is significant in a process called autophagy. You can think of autophagy as the body’s internal “clean-up system”. It is a process the body uses to remove damaged cell parts, misfolded proteins, and cellular debris, helping to maintain cellular health. Yet, autophagy declines as we age, leaving cells more prone to the development of disease and general dysfunction.
Spermidine steps in here by working to activate autophagy, mimicking the effects of caloric restriction without requiring extreme dietary changes.
Research-backed insights into spermidine for longevity
At the cellular level, spermidine and its actions including promoting autophagy, removing waste and rejuvenating cells, may delay age-related diseases like Alzheimer’s, cardiovascular issues, and even some cancers.
Research published in Nature Cell Biology revealed that spermidine supplementation can extend both healthspan and lifespan in model organisms. The study reported improvements in cardiovascular health, reduced markers of inflammation, and sharper cognitive function which are key indicators of a person ageing well.
Beyond ageing: spermidine’s calming effect
It is well established that spermidine’s benefits extend beyond longevity. It supports brain health by reducing neuroinflammation and promoting autophagy in neural cells. These are actions that may reduce stress and anxiety and also enhance mental clarity.
As spermidine levels naturally decline with age, particularly in the brain and blood, supplementation has shown promise in reversing these declines. Perhaps, most notably, nonagenarians with cognitive function comparable to people 40 years younger were found to have spermidine levels similar seen mainly in younger individuals. These impressive findings suggest a role for spermidine medically in the future to preserve cognitive function and maintain a sense of calm well into old age. However, more studies are needed to confirm this outcome.
More ways to maximise autophagy and spermidine levels
Incorporate spermidine-rich foods: You could add foods like soy products, aged cheese, mushrooms, and fermented foods such as natto and miso to your diet.
Support gut health: A healthy microbiome can enhance your body’s spermidine production; probiotic-rich foods like yoghurt are helpful.
Stay active: Regular physical activity supports autophagy, further increasing spermidine’s effects.
Get quality sleep: Proper rest regulates autophagy and benefits overall cellular health.
Avoid processed foods: These disrupt natural spermidine production and may hinder autophagy.
Spermidine’s future in the world of research
Far from just a buzzword, the potential benefits of spermidine extend all over the body. For your heart, your brain, and beyond; as research progresses, spermidine could be set to play a huge role in personalised medicine, and be specifically tailored to individual genetic profiles.
The takeaways on Spermidine
Spermidine’s role in cognitive health—helping preserve memory and clarity as we age—makes it equally compelling for those looking to stay sharp, not just live longer. By adding more spermidine-rich foods to your plate or using a targeted supplement, this unique compound offers a way to support your body’s natural processes, helping you to feel sharper, lighter, and more resilient.
This article is for informational purposes only, even if and regardless of whether it features the advice of physicians and medical practitioners. This article is not, nor is it intended to be, a substitute for professional medical advice, diagnosis, or treatment and should never be relied upon for specific medical advice. The views expressed in this article are the views of the expert and do not necessarily represent the views of Healf
References
Kaminsky CJ, Mill J, Patel V, et al. The longevity factor spermidine is part of a highly heritable complex erythrocyte phenotype associated with longevity. Aging Cell. Published online July 27, 2024. doi:10.1111/acel.14311. Available at: https://onlinelibrary.wiley.com/doi/epdf/10.1111/acel.14311
Spermidine is essential for fasting-mediated autophagy and longevity. Nature Cell Biology. Published online August 8, 2024. doi:10.1038/s41556-024-01468-x. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC11392816/pdf/41556_2024_Article_1468.pdf
Lauren Cason A, Ikeguchi Y, Skinner C, et al. X-linked spermine synthase gene (SMS) defect: the first polyamine deficiency syndrome. Eur J Hum Genet. 2003;11(12):937-944. doi:10.1038/sj.ejhg.5201072 https://www.nature.com/articles/5201072
Hofer SJ, Simon AK, Bergmann M, et al. Mechanisms of spermidine-induced autophagy and geroprotection. Nat Aging. 2022;2(12):1112-1129. doi:10.1038/s43587-022-00322-9 https://www.nature.com/articles/s43587-022-00322-9
Ni YQ, Liu YS. New insights into the roles and mechanisms of spermidine in aging and age-related diseases. Aging Dis. 2021;12(8):1948-1963. doi:10.14336/AD.2021.0603 https://pmc.ncbi.nlm.nih.gov/articles/PMC8612618/
Satarker S, Wilson J, Kolathur KK, et al. Spermidine as an epigenetic regulator of autophagy in neurodegenerative disorders. Eur J Pharmacol. 2024;979:176823. doi:10.1016/j.ejphar.2023.176823 https://www.sciencedirect.com/science/article/pii/S0014299924005120
Chauhan AK, Mallick BN. Association between autophagy and rapid eye movement sleep loss-associated neurodegenerative and patho-physio-behavioral changes. Sleep Med. 2019;63:29-37. doi:10.1016/j.sleep.2019.04.019
Fan J, Yang X, Li J, et al. Spermidine coupled with exercise rescues skeletal muscle atrophy from D-gal-induced aging rats through enhanced autophagy and reduced apoptosis via AMPK-FOXO3a signal pathway. Oncotarget.2017;8(11):17475-17490. doi:10.18632/oncotarget.15728
Muñoz-Esparza NC, Costa-Catala J, Comas-Basté O, et al. Occurrence of polyamines in foods and the influence of cooking processes. Foods. 2021;10(8):1752. doi:10.3390/foods10081752
Madeo F, Bauer MA, Carmona-Gutierrez D, Kroemer G. Spermidine: a physiological autophagy inducer acting as an anti-aging vitamin in humans? Autophagy. 2019;15(1):165-168. doi:10.1080/15548627.2018.1530929
Ma L, Ni Y, Wang Z, et al. Spermidine improves gut barrier integrity and gut microbiota function in diet-induced obese mice. Gut Microbes. 2020;12(1):1-19. doi:10.1080/19490976.2020.1832857
Everett JR. From metabonomics to pharmacometabonomics: the role of metabolic profiling in personalized medicine. Front Pharmacol. 2016;7:297. doi:10.3389/fphar.2016.00297.
Xu TT, Li H, Dai Z, et al. Spermidine and spermine delay brain aging by inducing autophagy in SAMP8 mice. Aging (Albany NY). 2020;12(7):6401-6414. doi:10.18632/aging.103035.
This article is for informational purposes only, even if and regardless of whether it features the advice of physicians and medical practitioners. This article is not, nor is it intended to be, a substitute for professional medical advice, diagnosis, or treatment and should never be relied upon for specific medical advice. The views expressed in this article are the views of the expert and do not necessarily represent the views of Healf
Pippa is a content writer and qualified Nutritional Therapist (DipNT) creating research-based content with a passion for many areas of wellbeing, including hormonal health, mental health and digestive health.
As a contributor to The Healf Source, she regularly attends seminars and programmes on a plethora of contemporary health issues and modern research insights with a drive to never stop learning. In addition, interviewing experts and specialists across The Four Pillars: EAT, MOVE, MIND, SLEEP.
In her spare time, she is an avid swimmer, mindfulness and yoga lover, occasionally bringing a raw, honest approach to the topics she faces. You may also discover some personal accounts of eye-opening wellbeing experiences amidst the reality of a disorientating, and often conflicting, modern wellbeing space.
- 1. Introducing spermidine: “Fasting in a bottle”
- 2. Spermidine and our genes
- 3. Defining spermidine’s role in cellular repair
- 4. Research-backed insights into spermidine for longevity
- 5. Beyond ageing: spermidine’s calming effect
- 6. More ways to maximise autophagy and spermidine levels
- 7. Spermidine’s future in the world of research
- 8. The takeaways on Spermidine
