MIND diet
In a 3-year NEJM trial of 604 older adults, cognition improved about equally on the MIND diet and a control diet, both with mild calorie restriction, and brain MRI measures did not differ. Cohort meta-analyses link closer MIND adherence to about 21% lower dementia risk. No trial has measured dementia, and no harms were sourced.
- Status
- A dietary pattern, not a regulated product.
- Also called
- Mediterranean-DASH Intervention for Neurodegenerative Delay, MIND, Mediterranean-DASH diet
- Followed for
- brain health, memory, cognitive decline, dementia prevention, Alzheimer's disease prevention
Strong several reviews agree · Moderate one review or consistent trials · Limited one or a few small studies · Untested no study in people, listed with what it rests on
Shown to help2
Reported risks0
No risks sourced yet.
What people follow it for, and what was found
Shown to help2
Dementia risk in cohort studies
Linked to about 21% lower dementia risk with high adherence in cohort studies of older adults.
Compared with people with the lowest MIND diet adherence, in cohorts [2], [3]; people in the lowest third of MIND diet scores [4]
The numbers and sources
- Effect
- In cohort meta-analyses, high against low MIND adherence was linked to lower dementia risk (HR 0.78, 95% CI 0.68 to 0.89 [2], HR 0.79, 95% CI 0.73 to 0.85 [3]). In 923 adults aged 58 to 98 followed 4.5 years, the highest third of MIND scores had lower Alzheimer's rates than the lowest third (HR 0.47, 95% CI 0.26 to 0.76), and the middle third also had lower rates (HR 0.65) [4].
- Population
- Older adults in 12 studies with 14 cohorts (18,328 in the MIND analysis) [2]; 21 cohort articles, 590,029 people [3]; 923 adults aged 58 to 98 [4]. All observational.
- Sources
- [2], [3], [4]
- Caveats
- Observational. Diet was self-reported by food frequency questionnaire [4]. The 3-year randomized trial found no cognitive difference [1].
Cognitive scores in cohort studies
Linked to slightly higher cognitive scores in cohort studies, with no significant link to slower decline.
Compared with people with lower MIND diet scores, per standard deviation, in 8 cohorts [5]
The numbers and sources
- Effect
- In a meta-analysis of 26,103 people in 8 cohorts, each standard deviation of MIND score was linked to a 0.042 higher global cognition z-score (95% CI 0.020 to 0.065) and a 0.010 slower annual decline that was not significant (95% CI -0.001 to 0.021) [5].
- Population
- Middle-aged and older adults in cohorts, including 4,066 Chinese adults, observational [5].
- Sources
- [5]
- Caveats
- Observational. The link to cognitive level is small, and the link to decline did not reach significance [5].
Not shown to help1
Cognitive decline in a randomized trial
One 3-year trial found cognition and brain MRI did not differ from a calorie-restricted control diet in older adults with a family history of dementia.
Compared with a control diet with mild calorie restriction, with the same diet counseling and weight-loss support [1]
The numbers and sources
- Effect
- Global cognition scores rose 0.205 standardized units on the MIND diet and 0.170 on the control diet over 3 years (difference 0.035, 95% CI -0.022 to 0.092, P = 0.23). White-matter hyperintensities, hippocampal volume and gray- and white-matter volumes changed similarly in both groups [1].
- Population
- 604 cognitively unimpaired older adults with a family history of dementia, BMI above 25 and a suboptimal diet. 93.4% completed the trial [1].
- Sources
- [1]
- Caveats
- Both groups had mild calorie restriction and counseling with weight-loss support, so the trial compared MIND against another structured diet, not against usual eating. MRI was done in a nonrandom subset [1].
How trials defined it
The MIND diet is a hybrid of the Mediterranean and DASH diets, modified to include foods linked in observational studies to lower dementia risk [1]. In the NEJM trial, participants followed MIND or a control diet for 3 years, both with mild calorie restriction, adherence counseling and weight-loss support [1]. Cohort studies scored adherence from food frequency questionnaires [4].
Claims tested and not found
- That switching to the MIND diet slows cognitive decline. Over 3 years, global cognition and brain MRI measures did not differ from a calorie-restricted control diet [1].
Sources
- Barnes LL, Dhana K, Liu X, et al. Trial of the MIND Diet for Prevention of Cognitive Decline in Older Persons. New England Journal of Medicine. 2023. https://doi.org/10.1056/NEJMoa2302368
- Wang Y, Lin X, Cheng L, et al. Dietary Patterns and Risk of Dementia in Elderly Individuals: A Systematic Review and Meta-analysis of Cohort Studies. Nutrition Reviews. 2026. https://doi.org/10.1093/nutrit/nuaf121
- Kim Y, Kim Y. The association of seven dietary patterns and the risk of dementia: a systematic review and meta-analysis of prospective cohort studies. Psychiatry Research. 2027. https://doi.org/10.1016/j.psychres.2026.117531
- Morris MC, Tangney CC, Wang Y, et al. MIND diet associated with reduced incidence of Alzheimer's disease. Alzheimer's & Dementia. 2015. https://doi.org/10.1016/j.jalz.2014.11.009
- Huang L, Tao Y, Chen H, et al. Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay (MIND) Diet and Cognitive Function and its Decline: A Prospective Study and Meta-analysis of Cohort Studies. The American Journal of Clinical Nutrition. 2023. https://doi.org/10.1016/j.ajcnut.2023.04.025