ZOE Science & Nutrition Most replayed moment: What can we learn from the man who’s trying to live forever? | Bryan Johnson & Tim Spector
45 snips
Mar 10, 2026 
Tim Spector, epidemiology professor and microbiome expert, and Bryan Johnson, entrepreneur and longevity self-experimenter, discuss a data-driven quest to slow aging. They cover his vegan calorie strategy, extensive supplement routine and biomarker tracking. They debate whole foods versus high-dose nutrients and imagine home testing and algorithmic health management. Bryan also shares five sleep habits.
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Design Calories Around Nutrient Density
- Do focus calories on nutrient-dense whole plant foods plus targeted protein and oils.
- Bryan eats 2,250 kcal, a morning “super veggie” bowl, nutty pudding, varied veg/legume meals, 110 g protein, and 45 ml extra virgin olive oil daily.
Supplement Only To Fill Measurable Gaps
- Do supplement where diet can't meet needs and measure to avoid excess.
- Bryan takes ~40 pills daily (collagen, pea/hemp protein, NR, calcium alpha‑ketoglutarate, taurine, lysine) and tests levels to hit precise targets.
Five Year Rapamycin Trial Ended By Harm Signals
- Bryan trialed rapamycin for five years then stopped after adverse effects appeared.
- He observed lipid, glucose and infection issues, stopped treatment, and later saw a Yale paper suggesting rapamycin accelerated some aging clocks.
