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The Planetary Health Diet May Save Your Brain and the Earth

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22.07.2026

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Brain disorders are the leading cause of illness and disability, affecting a third of the world’s population.

The world’s consumption of animal products significantly contributes to pollution and global climate change.

Healthy dietary choices and less animal consumption can improve brain health while slowing climate change.

Brain disorders are now the leading cause of illness and disability, affecting over one-third of the world’s population. As the population continues to grow and age, this burden is expected to further increase in the coming decades. Therefore, brain health has become a global priority. Healthy dietary change is now recognized as a key strategy to improve population health since poor diet is a major contributor to the global burden of disease.

Healthy dietary choices, especially eating much less animal products, would also contribute greatly to environmental sustainability and climate change mitigation. The world’s consumption of animal products significantly contributes to environmental pollution through methane emissions, water contamination, and land degradation, making cattle farming a major ecological concern. Cows are major producers of methane, a potent greenhouse gas approximately 23 to 28 times more effective than carbon dioxide at trapping heat over a........

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