The Claim
Higher intake of unhealthy plant-based foods is associated with a 46% increased risk of impaired cognitive function over a 16-year period in middle-aged and older adults, and there is no significant association between higher intake of unhealthy plant-based foods and risk of mental illness.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
People who eat more unhealthy plant-based foods over 16 years have a 46% higher risk of cognitive decline, but their risk of mental illness does not change significantly compared to those who eat less.
See the scientific wording
Higher intake of unhealthy plant-based foods is associated with a 46% increased risk of impaired cognitive function over 16 years in middle-aged and older adults, but shows no significant association with mental illness risk.
Eating too many sugary and refined plant-based foods causes blood sugar to stay high for long periods, which damages blood vessels in the brain and triggers constant low-level inflammation. This reduces the brain’s ability to use energy efficiently and breaks down connections between nerve cells, leading to memory and thinking problems over time.
What the research says
1 studyStudy: Quality of plant-based diets and healthy aging: A community-based prospective cohort study.
People who ate lots of sugary drinks and refined carbs—even if they were plant-based—were 46% more likely to have trouble thinking and remembering over 16 years, but their risk of depression or anxiety didn’t change. So, eating plants isn’t always healthy if they’re processed.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.