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BeginnerEvidence: Grade Bexercise performance

The Athletic Longevity Protocol — Creatine, Beta-Alanine, Citrulline & Taurine

A four-compound performance stack that covers each phase of high-intensity effort through a distinct mechanism: creatine fuels maximal short bursts, beta-alanine buffers the acidosis of 1–4 minute efforts, citrulline raises nitric oxide for blood flow and ammonia clearance, and taurine supports cellular function with a longevity angle. Three are dosed daily for accumulation; citrulline is timed pre-workout. Built on amino acids and energy substrates with strong safety profiles, for athletes who want mechanism-matched stacking rather than single-ingredient hype.

4 steps·4 compounds·Published June 26, 2026

Daily Schedule

Timing and dosage for each step

Daily (timing-independent)

5000 mg

Foundation. 3–5 g creatine monohydrate every day, including rest days. Fuels the phosphocreatine system for maximal efforts of 0–10 s. Timing is irrelevant — saturation and consistency are what matter. The most evidence-backed compound in the stack (grade A).

Daily, split into ≤1.6 g doses

4800 mg

Buffer. 3.2–6.4 g/day split across the day to minimise tingling (paraesthesia). Loads muscle carnosine over 4–6 weeks to buffer pH in 1–4 min efforts. Not a pre-workout — daily total drives the effect. Space apart from taurine (shared transporter).

60–90 min pre-workout

8000 mg

Blood flow. 6–8 g pure L-citrulline (or 8 g citrulline malate) before training. Raises nitric oxide for vasodilation, oxygen delivery, and ammonia clearance. The one genuinely time-dependent component of the stack.

Pre-workout or morning

TaurineTier A

2000 mg

Support. 1–3 g taurine for cellular hydration, calcium handling, and antioxidant support, with a longevity rationale beyond performance. Take separately from beta-alanine to avoid transporter competition.

Protocol Overview

High-intensity effort is not one energy system — it is a relay. The first ten seconds run on stored phosphocreatine. The next one-to-four minutes run on glycolysis, which acidifies the muscle. Throughout, blood flow delivers the oxygen and clears the waste. A performance stack only earns its place if each component answers a different stage of that relay rather than piling onto the same one.

This protocol assigns one job to each compound: fuel, buffer, deliver, support. Three are amino-acid-class compounds that accumulate with daily use; one — citrulline — is timed before training. All four have strong safety profiles, which is what makes them sensible as a long-term athletic base rather than a stimulant-driven pre-workout.

The Four Compounds

Creatine (fuel). 3–5 g/day rebuilds phosphocreatine, the immediate ATP-regeneration system behind maximal efforts of 0–10 seconds — the heaviest set, the first sprint. The most-researched supplement in existence (grade A), with cognitive and neuroprotective benefits beyond the gym. Timing-independent; consistency is everything.

Beta-alanine (buffer). 3.2–6.4 g/day loads muscle carnosine over 4–6 weeks, buffering the hydrogen ions that acidify muscle during 1–4 minute efforts. This is where creatine's window ends and fatigue normally begins. Split the dose to avoid tingling; it is not a pre-workout.

Citrulline (deliver). 6–8 g pre-workout raises nitric oxide more reliably than arginine, improving blood flow, oxygen delivery, and ammonia clearance. The one component that is genuinely time-dependent — take it 60–90 minutes before training.

Taurine (support). 1–3 g supports cellular hydration, calcium handling, and antioxidant defence, and carries a longevity rationale that the others lack. The supporting actor that rounds out the stack.

Dosing Summary

CompoundDoseTimingJobEnergy phase
Creatine3–5 gDaily, any timeFuel0–10 s (maximal)
Beta-alanine3.2–6.4 gDaily, splitBuffer1–4 min (glycolytic)
Citrulline6–8 g60–90 min pre-workoutDeliverBlood flow / clearance
Taurine1–3 gPre-workout or AMSupportCellular / longevity

How the Compounds Fit Together

The four cover complementary, non-overlapping ground. Creatine and beta-alanine sit at opposite ends of the high-intensity spectrum — phosphocreatine for the explosive seconds, carnosine buffering for the burning minutes. Citrulline works on the vascular side, improving the supply line to both. Taurine underwrites cellular function across all of it. There is no redundancy: removing any one leaves a stage of effort uncovered.

Two Transporter Notes

  • Beta-alanine and taurine share the TauT transporter. Long-term co-supplementation is fine, but dose them at separate times of day so they do not compete for uptake.
  • Citrulline lowers blood pressure via nitric oxide. Anyone on nitrates, PDE5 inhibitors, or antihypertensives should monitor blood pressure and consult a clinician.

Timeline & Expectations

  • Day 1: creatine and citrulline can contribute acutely (saturation may take ~1–2 weeks for creatine without loading; citrulline is acute pre-workout).
  • Weeks 4–6: beta-alanine reaches meaningful carnosine saturation — the buffering benefit emerges here, not on day one.
  • Ongoing: treat creatine, beta-alanine, and taurine as daily accumulators. Effects are real but modest individually and additive across the stack — grade B overall, anchored by creatine's grade-A foundation.

Safety & Notes

  • All four compounds are safety-tier A with extensive tolerability data.
  • This is a performance and general-fitness protocol, not a medical treatment. It complements — it does not replace — training, sleep, and adequate protein.
  • Hydrate well: creatine draws water intramuscularly, and taurine acts as a cellular osmolyte.

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