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Happy Tuesday, longevity seekers!

Real question: when's the last time you thought about what your brain cells eat for lunch?

I know, weird framing. But I read something this week that made me pour a cup of green tea and actually think about it. Turns out our neurons need a very specific kind of fuel to keep themselves tidy — and as we age, they start running low. The good news? Two ordinary things from the grocery store may help top them back up.

In an eye-catching lab study published on StudyFinds, UC Irvine researchers found that combining nicotinamide (a form of vitamin B3) with EGCG — the star antioxidant in green tea — restored youthful energy (GTP) levels in aging mouse brain cells in just 16 hours. The combo also helped neurons clear out toxic amyloid-beta clumps and improved survival by 22% in Alzheimer's-model cells. This was an in-vitro study, so it needs confirmation in humans, but it points to a low-risk, food-based angle on brain aging.

What To Do

  • Brew it, don't bottle it: Freshly brewed green tea preserves far more EGCG than sugary bottled or bubble teas. Steep loose-leaf or bagged green tea at about 175°F (80–85°C) for 2–3 minutes to protect the delicate catechins.

  • Go for matcha when you can: Because you're consuming the whole ground leaf, matcha delivers a bigger EGCG punch per gram than steeped green tea — perfect for a morning latte, smoothie, or overnight oats.

  • Pair it with B3-rich foods: Vitamin B3 (niacin/nicotinamide) shows up in salmon, tuna, chicken, mushrooms, peanuts, sunflower seeds, and fortified whole grains. A salmon-and-green-tea dinner is basically the study on a plate.

  • Consistency beats intensity: Population studies link roughly 2–3 cups of green tea per day with better long-term brain and cardiovascular outcomes. You don't need to megadose — you just need a routine.

This week's challenge: Swap one of your usual daily drinks (soda, sweetened latte, or afternoon coffee #3) for a freshly brewed cup of green tea or a matcha every day this week — and pair at least two of those days with a B3-rich meal like salmon, sardines, or a mushroom stir-fry.

Unsure which tea bags to steep? Here’s a consensus list of the five best green tea bags to help you. I’d love to hear how you incorporated this ancient beverage into your daily meals. You can email me at [email protected].

Until next time,
Steve Fink
longevity.cooking

Our Favorite Recipes Around the Web

Vanilla Matcha Smoothie via Love and Lemons

A 4-ingredient blender breakfast that delivers a full scoop of ceremonial matcha alongside creamy banana — an easy way to hit your EGCG for the day.

Matcha Overnight Oats via Sift & Simmer

No-cook oats stirred with matcha, chia, and flax for a make-ahead brain-friendly breakfast you'll actually look forward to.

Steaming salmon over green tea–infused water gives you EGCG and B3-rich fish in one gorgeous plate.

Salmon Ochazuke (Green Tea Over Rice) via The Subversive Table

This classic Japanese comfort bowl pours hot green tea right over rice and flaky salmon — pure weeknight brain food.

Green Tea Soba Noodle Salad via Season with Spice

Cha soba noodles (infused with green tea leaves) tossed with julienned veg and sesame — a light, EGCG-packed lunch.

Green Tea Soup with Noodles via Wholesome Cook

A 15-minute one-pot broth built on green tea, shiitake mushrooms, greens, and salmon — hitting both EGCG and B3 in a single bowl.

Homemade Matcha Lemonade via Mind Over Munch

A 3-ingredient cold matcha drink that swaps sugary bottled tea for a homemade version you actually control.