Brain health
One of the most accessible yet powerful tools for brain health. How garlic supports inflammation, circulation, blood sugar and the gut-brain connection.
Jean Dow
Medical Herbalist & Functional Medicine Practitioner
Garlic (Allium sativum) is one of the most accessible yet powerful tools we have for supporting brain health. From a functional medicine perspective, cognitive decline is rarely caused by one single factor. Instead, it reflects a combination of inflammation, poor blood sugar regulation, cardiovascular issues, and oxidative stress, all areas where garlic can play a supportive role.
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Rich in sulfur compounds such as allicin, garlic has potent anti-inflammatory and antioxidant properties. These help to reduce systemic inflammation, a key driver in neurodegenerative conditions, while also protecting delicate brain cells from oxidative damage. In clinical practice, this is particularly relevant when working preventatively with individuals concerned about memory or dementia risk.
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Garlic also supports cardiovascular health by helping to regulate blood pressure and improve circulation. This is crucial, as optimal blood flow ensures a steady supply of oxygen and nutrients to the brain. Alongside this, garlic may aid blood sugar balance, an often-overlooked factor in cognitive health, with dysregulation increasingly linked to Alzheimer’s disease.
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From a gut-brain perspective, garlic acts as a prebiotic, supporting beneficial bacteria and contributing to a healthier microbiome: an essential foundation for mood, cognition, and immune balance.
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At Cogmission, we emphasise simple, sustainable strategies for long-term brain health. Incorporating garlic regularly into the diet, ideally crushed and allowed to sit briefly before eating, is a practical, evidence-informed step that supports multiple systems at once.
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This article was first published on the CogMission blog. CogMission is Jean’s sister company, specialising in brain health.
This article is for general information and isn’t a substitute for personal medical advice. Please don’t start or stop any medication without speaking to a qualified practitioner.
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