Alzheimer’s disease (AD) is a progressive brain disorder that slowly impairs memory, reasoning, and behavior, eventually disrupting daily life. It affects nearly six million Americans and is believed to result from the buildup of two abnormal proteins, beta-amyloid, which forms sticky plaques, and tau, which creates twisted tangles inside brain cells. While there is no cure yet, research suggests that diet may help lower the risk or delay the onset of Alzheimer’s. The NIA notes that eating patterns like the Mediterranean or MIND diets, along with certain foods and supplements, might support brain health by reducing inflammation, improving circulation, and protecting cells from oxidative stress.If you are wondering what foods may help, green tea is worth considering. Rich in antioxidants—especially epigallocatechin gallate (EGCG)—this centuries-old drink has long been linked to better brain health. According to Medical News Today, EGCG may help protect neurons from damage, and when combined with vitamin B3, also known as nicotinamide, it could provide an even stronger defense against Alzheimer’s.How Green Tea Might Protect Against Alzheimer’sGreen tea is more than a relaxing beverage as it may play a role in protecting the brain from Alzheimer’s disease. A 2022 review in Nutrients found that EGCG helps prevent beta-amyloid plaques from forming, which are one of the major hallmarks of the disease. Another study published in the International Journal of Molecular Sciences in 2022 showed that EGCG might even break down existing beta-amyloid proteins, possibly slowing how quickly Alzheimer’s progresses.The benefits don’t stop there. Green tea’s antioxidants help neutralize free radicals, reducing oxidative stress that can harm brain cells. They may also lower inflammation levels, another key factor linked to Alzheimer’s risk. Additionally, green tea supports better blood flow to the brain through anti-atherosclerotic and anti-thrombotic actions—meaning it helps prevent cholesterol buildup and blood clots, both of which can interfere with oxygen delivery to the brain.Pairing Green Tea And Vitamin B3Recent findings suggest that combining green tea with vitamin B3 could take its protective potential further. A 2025 study in GeroScience found that pairing EGCG with nicotinamide improved brain cell energy levels, helping them function more like those in younger brains. Researchers from the University of California, Irvine, explained that this combination might help restore the brain’s ability to clear beta-amyloid plaques, strengthening its natural defense mechanisms.Adding this duo to your daily life is easy. Vitamin B3 is present in many common foods, like chicken, turkey, salmon, peanuts, avocado, and rice, or it can be taken as a supplement. Aim for three to five cups of green tea each day with meals that include these foods, as recommended by The Times of India. If you prefer supplements, choose nicotinamide and check with your doctor before starting to ensure it’s safe with your medications or health conditions.While the combination of green tea and vitamin B3 shows promise, it is not a cure for Alzheimer’s. Scientists emphasize that more research is needed to confirm its effectiveness. Still, incorporating both into a balanced lifestyle may offer a simple, accessible way to support long-term brain health and possibly keep the mind sharper with age.
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