// PROTOCOLS / nutrition
▶ Nutrition protocol
Nutrition coverage focuses on source-backed themes: nutrient-dense plant-led meals, earlier eating, Blueprint products, microplastics claims, and metabolic-drug commentary with medical caution.
Daily inputs, long-range targets, and explicit avoidances are separated into the same terminal panels as the BJ.WATCH reference. Source-aware summary only.
idxtimehabit
01 mealHBT Emphasize food quality and repeatability: plant-led meals, legumes/vegetables/healthy fats, earlier eating, and consistent prep.
concepts/blueprint-protocol.md 02 dailyHBT Pair product or testing claims with source paths so readers can distinguish Blueprint marketing from independent evidence.
concepts/blueprint-protocol.md 03 dailyHBT Treat the Akkermansia + butyrate product as supplement/product positioning until product-specific outcome evidence is available.
raw/articles/bryan-johnson/x-twitter-daily-2026-06-19.md Long-term objectives
target 01 Keep nutrition as one input in the measurement loop rather than a standalone promise of rejuvenation.concepts/blueprint-protocol.md
target 02 Update exact calories, macros, and meal windows only when a current source supports the number.raw/articles/bryan-johnson/bryan-johnson-protocol-2026-05-22.md
target 03 Treat Johnson’s November 2026 chef-RHR post as an attributed N=1 measurement-loop disclosure, not evidence quantifying food→RHR effects. “My chef get’s my sleep resting heart rate every am. / My AI auto sends. / After 1,800+ days of experimentation, I know the exact impact of meal timing, food composition, and calories on my resting heart rate. / 42 bpm and below: 😃 / 43-45 bpm: 😐 / 45 bpm+: 🙁” operationalizes the tracked RHR storyline — the October 16 “Resting heart is the new thirst trap” status-engineering disclosure and the RHR-as-outcome-predictor context (CMAJ 2016 meta-analysis of 46 cohorts, 1,246,203 adults, 10.1503/cmaj.150535: each 10 bpm higher RHR associated with all-cause mortality RR 1.09; RHR >80 bpm at RR 1.45) — by routing the morning number to his chef via AI auto-send. Boundaries: “exact impact” is a self-report — no dataset, effect sizes, or confounder control is published for the claimed 1,800+ days, during which meals varied alongside sleep, training, travel, and illness; the 42 / 43–45 / 45+ emoji bands are personal traffic-light thresholds, not clinical bands; RHR moves for many reasons unrelated to food; and a predictor of mortality is not proof that meal-timing-driven RHR changes extend life. Not a reader meal-timing protocol, a validated food→RHR quantification, or medical advice.https://x.com/bryan_johnson/status/2116979494699647184
target 04 Treat Johnson’s October 2026 diet-timing immune directive as an attributed relay of a one-day-old Nature mouse study, not reader eating guidance. “Avoid eating dirty during an acute immune reaction bc it can permanently lock in how immune cells react in the future. *viral infection, autoimmune flare, tissue injury…” traces to Jiang, Tayeri, … Bapat, “Diet at disease onset determines tissue inflammatory memory,” Nature, published October 28, 2026 (10.1038/s41586-026-11181-4) — one day before the post: a 4-day high-fat window at imiquimod-inflammation onset amplified type-17 skin inflammation in lean mice to obesity-comparable severity (~2.1-fold ear thickening), and after recovery on low-fat food a chromatin-poised tissue-resident memory CD4+ T-cell population persisted, keeping rechallenges exaggerated out to 6.5 months — transplantable with the skin patch, abolished by NLRP3 inhibition at the initial flare or CD4 depletion, and mirrored acutely in lung. Boundaries: mice and a psoriasis-like cream model; tissue-local memory (only previously inflamed ears overreacted); 6.5 months is not “permanent”; “how immune cells react” at large overstates a skin CD4+ T_RM population; the viral/autoimmune/tissue-injury list extends to triggers the paper did not test; the corresponding author’s own caution is that a lab mouse diet “doesn’t map neatly onto what we eat.” Not a reader eating-during-illness protocol, evidence about human disease course, or medical advice.https://x.com/bryan_johnson/status/2115894638561415459
target 05 Treat the October 2026 five-item microplastics-reduction checklist as attributed exposure-reduction guidance with real measurement literature behind each item — microwaving plastic releases up to 4.22M microplastics and 2.11B nanoplastics per cm² in 3 minutes (ES&T 2023), plastic cutting boards shed an estimated 7.4–50.7 g/person-year (10.1021/acs.est.3c00924), plastic teabags release ~11.6 billion microplastics per cup vs 0.3–2.4 particles/cup for loose leaf (10.1021/acs.est.9b02540; npj Science of Food October 2026 head-to-head) — but no study yet demonstrates that reducing these exposures improves human health outcomes, and the post names no study. Not a reader purchasing list, proven health-benefit evidence, or medical advice.https://x.com/bryan_johnson/status/2114496819615187026
target 06 Treat Johnson’s October 2026 semen-microplastics relay as two real studies carried accurately around an unreplicable N=1 centerpiece. The studies verify: Hu/Garcia/Campen et al., Toxicological Sciences, August 2024 (10.1093/toxsci/kfae060) found microplastics in all 47 canine and all 23 human testes (human mean 328.44 µg/g, PE dominant) with the authors’ own limits — postmortem samples, method still being refined, “do not imply causality” — and the eBioMedicine multi-site China study (10.1016/j.ebiom.2024.105369) found microplastics in all semen and urine samples of 113 fertility-clinic men with PTFE exposure associated with lower sperm concentration (52.13 vs 58.32 million/mL — the post’s “11%” is 10.6% rounded) and total sperm count (188.90 vs 207.67 million — the “9%”), a cross-sectional association the authors explicitly separate from causation. But “I got mine to zero. The first documented case” is a self-reported specialty-lab test with no published method or replication — Johnson’s own reply concedes the test “is not widely available” and was created for him — and field-wide methodology reviews (Arch Toxicol 2026, 10.1007/s00204-026-04392-1) flag unstandardized detection and contamination risk that cut at “zero” and “100%” claims alike. Not evidence that non-stick pans harm readers’ fertility, a validated zero-microplastics protocol, or medical advice.https://x.com/bryan_johnson/status/2115135756490747981
Forbidden
FORBID: Do not publish prototype calorie, macro, supplement-dose, or eating-window numbers as universal targets.concepts/biomarker-driven-longevity-protocols.md
FORBID: Do not treat Retatrutide commentary as medication guidance.raw/articles/bryan-johnson/x-twitter-bryan-johnson-2026-05-22.md
FORBID: Do not treat microplastics testing or product claims as proven intervention efficacy.raw/articles/bryan-johnson/blueprint-microplastics-test-2026-05-23.md