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Can strawberries slow down the aging process?


TORONTO, May 20, 2021 – The long sought-after fountain of youth may have been hidden in plain sight all along. Three new studies suggest strawberries may be associated with slowing down aging of the brain, cardiovascular system, and gut microbiome.


As a person ages, the brain can experience changes that result in impairments in learning, memory, gait, and balance. Sometimes these changes lead to early cognitive decline, disability, or falls among older adults.

In a recent study1 by Dr. Barbara Shukitt-Hale and her team at the USDA Human Nutrition Research Center on Aging at Tufts University, 37 healthy older adults participated in a two-arm trial in which they consumed either freeze-dried strawberry powder beverages (24g/day, equivalent to two cups of fresh strawberries) or a calorie-matched control powder for 90 days. Participants completed a battery of balance, gait, and cognitive tests at baseline, midpoint, and conclusion of the trial.

Participants in the strawberry group performed better on spatial memory tasks and word recognition tests relative to those in the control group. These findings show that the addition of strawberry to the diets of healthy, older adults can improve some aspects of cognition, although more studies with a larger sample size and longer follow-up are needed to confirm this finding.

“Based on these promising results in healthy individuals, we are now conducting a study among older adults whose health is compromised and we expect to see even greater improvement following strawberry supplementation,” said Dr. Shukitt-Hale.

This research comes on the heels of recent publications2 that indicate diets higher in long-term flavonoid intake3, from foods such as strawberries, could contribute to reducing the risk of Alzheimer’s Disease and related dementias4.


Endothelium is a thin layer of cells that lines every blood vessel in the body. It’s responsible for the relaxation and constriction of veins and arteries, playing a major role in blood flow, blood pressure regulation, blood clotting, and wound healing. High total cholesterol and LDL (the “bad” cholesterol) can impair the function of the endothelium, clog arteries, and lead to heart disease, particularly in later years of life.

A new study5 from Dr. Britt Burton Freeman’s team of researchers at Illinois Institute of Technology asked middle-aged adults with moderately-high LDL cholesterol to drink beverages two times a day made from freeze-dried strawberry powder (25g in each) or a control powder for four weeks. After completing their first assigned beverage, they switched to the other one (strawberry/control) for an additional four weeks.

The health of the endothelium, measured by flow-mediated dilation, improved in the strawberry group one hour after drinking the beverage. Systolic blood pressure decreased two hours after drinking the strawberry beverage compared to the control, and this was more pronounced four weeks after the strawberry intervention. 

The findings suggest that strawberries may improve endothelial function and be considered a specific food to include in a heart-healthy diet for aging adults with moderately-high cholesterol.


Strawberries act as prebiotics and may increase gut bacteria associated with lean body weight, health, and longevity, according to a new study out of University of California, Los Angeles (UCLA).

The pilot study6 led by Dr. Zhaoping Li and her team at the Center for Human Nutrition considered whether strawberries would alter the gut microbiota. Rich in vitamin C and polyphenols, strawberries have already shown their potential to decrease LDL cholesterol7, blood glucose8, insulin resistance9, and other disease risk factors. The gut microbiota is the next frontier for scientific exploration of strawberries’ impact on health.

Fourteen adults were asked to follow a “beige” diet low in fibre and polyphenols for 8 weeks. Two weeks in, a 13g strawberry powder drink was introduced to the diet twice a day, for four weeks. Then the participants returned to a beige-only diet for the two final weeks without strawberries.

Drinking strawberry powder beverages twice a day for four weeks was associated with an increase of 24 operational taxonomic units (OTUs), or gut microorganisms. Once the participants returned to a beige-only diet, several of the OTUs reversed back to their pre-strawberry status, suggesting strawberry’s role in influencing the gut bacteria.

Dr. Li shared, “Consumption of strawberry increased the abundance of gut microorganisms that could lead to lean body weight, better health, and longevity.”

Something as simple as making strawberries a regular part of the diet may be the key to delaying aging of both the mind and the body.


1 Miller, M., Thangthaeng, N., Rutledge, G., Scott, T., & Shukitt-Hale, B. (2021). Dietary strawberry improves cognition in a randomised, double-blind, placebo-controlled trial in older adults. British Journal of Nutrition, 1-11. doi:10.1017/S0007114521000222
2 Devore EE, Kang JH, Breteler MM, Grodstein F. Dietary intakes of berries and flavonoids in relation to cognitive decline. Ann Neurol. 2012 Jul;72(1):135-43. doi: 10.1002/ana.23594. Epub 2012 Apr 26. PMID: 22535616; PMCID: PMC3582325.
3 Agarwal P, Holland TM, Wang Y, Bennett DA, Morris MC. Association of Strawberries and Anthocyanidin Intake with Alzheimer’s Dementia Risk. Nutrients. 2019; 11(12):3060. https://doi.org/10.3390/nu11123060
4 Shishtar E, Rogers GT, Blumberg JB, Au R, Jacques PF. Long-term dietary flavonoid intake and risk of Alzheimer disease and related dementias in the Framingham Offspring Cohort. Am J Clin Nutr. 2020 Aug 1;112(2):343-353. doi: 10.1093/ajcn/nqaa079. PMID: 32320019; PMCID: PMC7398772.
5 Leailin Huang, Di Xiao, Xuhuiqun Zhang, Amandeep K Sandhu, Preeti Chandra, Colin Kay, Indika Edirisinghe, Britt Burton-Freeman, Strawberry Consumption, Cardiometabolic Risk Factors, and Vascular Function: A Randomized Controlled Trial in Adults with Moderate Hypercholesterolemia, The Journal of Nutrition, 2021;, nxab034, https://doi.org/10.1093/jn/nxab034
6 Zahra Ezzat-Zadeh, Susanne M. Henning, Jieping Yang, Shih Lung Woo, Ru-Po Lee, Jianjun Huang, Gail Thames, Irene Gilbuena, Chi-Hong Tseng, David Heber, Zhaoping Li. California strawberry consumption increased the abundance of gut microorganisms related to lean body weight, health and longevity in healthy subjects, Nutrition Research, Volume 85, 2021, Pages 60-70, ISSN 0271-5317, https://doi.org/10.1016/j.nutres.2020.12.006.
7 Basu A, Betts NM, Nguyen A, Newman ED, Fu D, Lyons TJ. Freeze-dried strawberries lower serum cholesterol and lipid peroxidation in adults with abdominal adiposity and elevated serum lipids. J Nutr. 2014;144(6):830-837. doi:10.3945/jn.113.188169
8 Bennett, Louise, Selby-Pham, Sophie and Siow, Lee Fond. Characterising absorption and health-related properties of phytochemicals extracted from Malaysian palm fruit biomass after oil extraction, Food Funct., 2020, 11, 907, DOI:10.1039/C9FO01149H
9 Park E, Edirisinghe I, Wei H, Vijayakumar LP, Banaszewski K, Cappozzo JC, Burton-Freeman B. A dose-response evaluation of freeze-dried strawberries independent of fiber content on metabolic indices in abdominally obese individuals with insulin resistance in a randomized, single-blinded, diet-controlled crossover trial. Mol Nutr Food Res. 2016 May;60(5):1099-109. doi: 10.1002/mnfr.201500845. Epub 2016 Mar 29. PMID: 26842771.

SOURCE California Strawberries Commission

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