The Curious Claim Behind Two Tablespoons
Tomato paste is usually there to deepen the colour and flavour of a curry, soup or pasta sauce. But a new clinical trial has given this everyday kitchen ingredient a rather unexpected role: could concentrated tomato consumption influence how the brain performs?
The answer is not “tomato paste prevents dementia.” The evidence is nowhere near that strong. But researchers recently found that three months of daily concentrated tomato paste consumption was associated with measurable improvements in selective attention, processing speed and associative memory in healthy middle-aged adults. They also detected changes in functional brain connectivity.
That makes tomato paste an interesting food to investigate; not a new brain-health prescription.
Why Tomato Paste?
The star ingredient is lycopene, a red carotenoid found abundantly in tomatoes. Lycopene has antioxidant and anti-inflammatory properties and can cross the blood-brain barrier, making it biologically plausible as one contributor to the relationship between tomato-rich foods and brain health.
There is another reason tomato paste is interesting: concentration and processing can change how readily lycopene is absorbed. The paste used in the trial contained approximately 111 mg of lycopene per 100 g, alongside other carotenoids including beta-carotene and phytoene. But tomato paste is not simply a delivery system for lycopene. It contains a mixture of plant compounds, so the study cannot establish that lycopene alone produced the cognitive changes.
What Did the New Study Actually Do?
The 2026 randomized crossover clinical trial included 47 healthy adults aged 40–55, with 42 completing the study. Participants went through two three-month dietary periods separated by a one-month washout: one involved daily concentrated tomato paste, while the other involved a diet restricting lycopene-rich foods.
The tomato intervention provided 0.5 g of tomato paste per kilogram of body weight each day. The average amount actually consumed was about 34.6 g per day, which is roughly equivalent to around two tablespoons depending on how the paste is measured. The researchers did not establish two tablespoons as a universal brain-health dose.
Participants completed several cognitive tests before and after each intervention. The researchers also measured blood lycopene and BDNF and used resting-state fMRI to examine functional brain connectivity.
Attention and Memory Got the Most Interesting Signal
After the tomato-paste intervention, participants showed improvements in measures of selective attention and processing speed on the d2-R test. Concentration performance increased by about 7.2 points and processing speed by about 8.3 points when the tomato period was compared with the control period.
There was also an improvement in associative memory, measured using a face-name matching task, with an estimated between-intervention difference of 0.8 points. Executive function, however, did not show a significant improvement. That pattern matters. The study did not demonstrate a broad improvement across every aspect of cognition. Instead, the clearest effects appeared in particular domains involving attention, processing speed and associative memory.
The Brain Scans Add Another Layer
The researchers also examined whether tomato intake was accompanied by changes in how different brain regions functioned together at rest.
After the tomato intervention, changes were observed in functional connectivity involving the frontoparietal and auditory networks, while the control period showed changes involving the dorsal attention network. Functional connectivity refers to statistical coordination between patterns of brain activity; it should not be interpreted as a simple measure of whether the brain became “stronger” or “weaker.”
The imaging findings therefore provide an intriguing biological clue, but they do not demonstrate that tomato paste rebuilt neural connections or permanently changed the brain.
Could BDNF Be Part of the Story?
The researchers also measured brain-derived neurotrophic factor (BDNF), a protein involved in neuronal function and processes related to plasticity.
BDNF showed a mean increase of about 15.2 ng/mL after tomato intake, but the researchers described the result as borderline and noted substantial variability and a carry-over effect between intervention periods. That means the finding should be treated cautiously rather than presented as proof that tomato paste boosts BDNF in a clinically meaningful way.
Interestingly, increases in blood lycopene were modestly correlated with improvements in concentration and processing speed. This supports the possibility that lycopene or another tomato-associated compound may contribute, but correlation does not identify the exact biological cause.
Does This Mean Tomato Paste Can Protect Your Brain? Not yet.
The trial was relatively small, lasted only three months per intervention, involved healthy adults aged 40–55, and examined specific cognitive tests rather than dementia incidence or long-term cognitive decline.
It also cannot tell us whether the observed improvements would persist after people stopped consuming tomato paste. The researchers themselves note that longer and larger studies are needed to confirm the findings and clarify the mechanisms. Most importantly, the study does not show that tomato paste prevents dementia, Alzheimer’s disease or age-related brain decline.
Why This Still Matters for Brain Health
The study is valuable because nutrition research is increasingly moving beyond the simple question of whether a food is “healthy.” Researchers are beginning to investigate whether particular foods and their bioactive compounds can influence attention, memory, neuroplasticity and measurable patterns of brain activity.
That fits into the broader brain-health picture. The WHO’s 2026 dementia-risk-reduction guidance recommends a healthy, balanced dietary pattern rather than dependence on individual “superfoods.” Its healthy-diet guidance emphasizes adequacy, balance, moderation and diversity, with minimally processed and unprocessed foods forming the foundation. So, tomato paste can be part of the picture, but it does not need to carry the whole picture.
What Could You Actually Do with This Finding?
There is no need to start swallowing spoonfuls of tomato paste because of this study. Instead, tomato paste can be an easy way to increase tomato-derived foods in everyday meals. Add it to lentils, vegetable curries, soups, stews, pasta sauces or grain dishes. Using it as part of a meal containing some healthy fat may also make sense nutritionally, since dietary fat can influence carotenoid absorption.
The broader idea is more useful than the exact tablespoon count: small, repeatable food choices can become part of a larger dietary pattern that supports long-term health.
The Takeaway
Two tablespoons of tomato paste may sound like an unlikely brain-health story, but a small 2026 randomized trial gives the idea some scientific intrigue.
Three months of concentrated tomato paste consumption was associated with improvements in selective attention, processing speed and face-name associative memory, along with changes in functional brain connectivity and a borderline increase in plasma BDNF. But this is an early finding, not proof of a tomato-based cognitive “hack.”
The more sensible takeaway is simple: tomato paste can be one nutrient-rich ingredient in a varied diet, while the science continues to determine whether its cognitive effects are real, durable and clinically meaningful.
Research Findings
A 2026 randomized, two-period crossover clinical trial published in Antioxidants included 47 healthy adults aged 40–55, with 42 completing the study. Participants consumed concentrated tomato paste at 0.5 g/kg/day, averaging approximately 34.6 g per day, with each intervention period lasting 3 months. Researchers reported improvements in selective attention, processing speed and associative memory, along with changes in functional brain connectivity and a borderline increase in BDNF. However, the study does not establish the long-term effects of tomato paste, whether it can help prevent dementia, how it affects older adults or people with cognitive impairment, or whether lycopene itself was responsible for the observed changes.
Before You Give Your Tomato Paste a Promotion…
Two tablespoons of tomato paste may not sound like a serious brain-health strategy, but the latest research gives this everyday ingredient an interesting scientific twist. In a small randomized clinical trial, three months of concentrated tomato paste consumption was linked with improvements in selective attention, processing speed and associative memory, alongside changes in functional brain connectivity. The findings also raise questions about whether compounds such as lycopene may influence brain function.
But intriguing is not the same as proven. The study was small and short, and it did not show that tomato paste prevents dementia, slows brain aging or produces lasting cognitive benefits. More research involving larger and more diverse populations, longer follow-up and repeated testing is needed. For now, tomato paste can simply be viewed as one nutrient-rich ingredient that can fit into a varied, balanced diet. The bigger brain-health lesson is not to search for one magical food, but to build a pattern of eating and living that supports the brain over the long term.
FAQ (Frequently Asked Questions)
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Can tomato paste really improve brain function?
A 2026 randomized trial found improvements in selective attention, processing speed and associative memory after three months of concentrated tomato paste consumption in healthy middle-aged adults. However, this was a small study, so the findings need confirmation. -
Why is tomato paste being studied for brain health?
Tomatoes contain lycopene and other plant compounds with antioxidant and potentially anti-inflammatory properties. Processing tomatoes into paste can also increase the bioavailability of lycopene, making concentrated tomato products interesting for nutrition research. -
How much tomato paste did participants consume?
The study provided 0.5 g of tomato paste per kilogram of body weight each day. Participants consumed an average of approximately 34.6 grams daily, which is roughly equivalent to two tablespoons depending on how the paste is measured. -
Does tomato paste prevent dementia?
No. The study did not investigate whether tomato paste prevents dementia, and it provides no evidence that it can prevent Alzheimer’s disease or other forms of dementia. -
Should I eat two tablespoons of tomato paste every day?
There is no scientifically established brain-health requirement to consume two tablespoons of tomato paste daily. It can be included as part of a varied diet, but the study’s findings should not be interpreted as a specific prescription or guaranteed cognitive benefit.
DISCLAIMER: The content of this article is intended solely for general informational purposes and is not a substitute for professional medical consultation, diagnosis, or treatment. Always seek the advice of your doctor or another qualified healthcare professional regarding any medical concerns.
