Could a daily helping of greens make your brain younger? That was the eye-catching idea behind the original article. The research is interesting, but its design matters before we turn a finding into advice.
What did the study find?
Researchers followed 960 older adults in the US, comparing reported leafy-vegetable intake with changes in thinking and memory tests. Higher intake was associated with slower cognitive decline. This was an observational study, not a trial assigning people to different diets. Morris and colleagues — leafy vegetables and cognitive decline, 2018.
The widely repeated “11 years younger” comparison described a statistical difference in the rate of decline between intake groups. It did not show that eating greens reversed anyone’s age or restored lost memory. Morris and colleagues — leafy vegetables and cognitive decline, 2018.
What does that leave uncertain?
People who ate more greens also differed in other ways. The researchers adjusted for several factors, but other influences could still explain part of the association. They also cautioned against assuming the results apply to younger adults or all populations. Morris and colleagues — leafy vegetables and cognitive decline, 2018.
That makes this a useful research question, rather than a prescription for preventing or treating dementia. It does not establish a benefit from taking the individual nutrients as supplements. Morris and colleagues — leafy vegetables and cognitive decline, 2018.
Bring vegetables into familiar meals
Vegetables contribute fibre, vitamins and minerals within a varied eating pattern. Fresh, frozen and canned options can all have a place. Healthdirect — A balanced diet.
Try a choice that fits your kitchen:
- Add spinach to an omelette or a bowl of soup.
- Stir chopped greens through pasta near the end of cooking.
- Put salad leaves in a sandwich.
- Use silverbeet in our lentil bolognese.
No meal needs to carry a promise about your future memory. Choose foods you enjoy and follow any individual dietary advice you have received.
The clinic’s initial naturopathy consultation includes dietary and lifestyle review. Melbourne Wellness — Services. Our eating with the seasons article has more kitchen ideas. If your separate question concerns food and skin, see the eczema guide.
Discuss suitability at a consultation.
Sources
Read 15 October 2026. Clinical sources support the adjacent general information; clinic links verify the advertised appointment menu.
- Morris and colleagues — leafy vegetables and cognitive decline, 2018 — peer-reviewed prospective observational study (2018); association, not a treatment trial; accessed 2026-10-15.
- Healthdirect — A balanced diet — Australian public-health guidance; accessed 2026-10-15.
- Melbourne Wellness — Services — current clinic facts; accessed 2026-10-15.
