Buffers, beetroot and the actual effort
In this investigation
Session length is not effort duration
My track sessions last roughly 10–25 minutes, but an example workout was 13 × 10-second sprint/10-second rest. Those short efforts, their incomplete rests and the cumulative workload matter more than the total time spent at the track. My lifting routine also includes one hard set per exercise, rather than five consecutive sets to failure on the same movement.
This matters when judging supplements. A compound that helps sustain work under one fatigue pattern may leave fastest sprint speed or maximal force unchanged. Adding up the seconds does not turn intermittent work into an equivalent continuous effort.
| Question | What the evidence must actually show |
|---|---|
| Faster short sprint | Sprint time or power improves against a matched control |
| More repeated work | Total repetitions or distance improves under the same load and rests |
| Less performance decline | The fall across bouts changes, beyond simply starting stronger |
| Better adaptation | Training-period strength, muscle or other relevant outcomes improve |
| Easier session | Perceived effort changes; this alone cannot establish the other outcomes |
None of the options below is recorded as adopted. Doses describe study exposure, not a proposed stack or personal regimen.
Beta-alanine needs time, and the chosen outcome matters
Beta-alanine increases muscle carnosine, which contributes to buffering inside muscle. It is a chronic-exposure intervention; tingling after a serving does not demonstrate improved performance. The sports-nutrition consensus describes benefits most consistently in certain sustained intense tasks, with loading over weeks. ISSN beta-alanine position stand.
A 2024 trial in 20 trained male volleyball players compared 4.8 g/day with placebo during eight weeks of additional sprint training. Training used four sets of ten 5-second all-out runs, with 15-second rests, three times weekly. Vertical and horizontal jump improvements were greater with beta-alanine; 10-m sprint and change-of-direction improvements were not significantly greater. The training was much larger than my reported track example, and the study assessed many outcomes in small groups. It does not establish that every short sprint gets faster. Guo and Wang, 2024.
A September 2025 futsal trial tested a shorter, higher-dose approach: 12 g/day for two weeks. Twenty players were randomized and 16 analyzed. Distance in an intermittent endurance test improved over time, but the supplement-versus-placebo change did not significantly differ (interaction P = .147); neither did 30-m sprint performance (P = .149). Muscle carnosine was not measured. The result limits that protocol without ruling out a longer exposure or different task. Miraftabi et al., 2025.
Three beta-alanine completers reported mild tingling on the first day. One participant in each group withdrew for gastrointestinal discomfort, so those withdrawals cannot all be attributed to beta-alanine. The dose escalation did not establish a performance advantage in this trial. Trial tolerability and participant flow.
For my routine, these findings leave beta-alanine a lower-priority experiment. A jumping result in a volleyball training program is interesting, but it is a different reason to take a supplement from seeking faster 10-second track intervals.
Bicarbonate: an acute intervention with a tangible tradeoff
Sodium bicarbonate changes extracellular acid–base conditions. Its evidence includes some high-intensity single and repeated efforts; benefits and gastrointestinal symptoms vary. Timing and delivery therefore belong to the experiment rather than being incidental packaging details. It also supplies substantial sodium. This performance question is separate from deciding whether my ordinary food subtotal contains too much or too little sodium. ISSN bicarbonate position stand.
A June 2026 crossover trial had 15 recreational runners complete 20 × 25-second treadmill intervals, then an 800-m time trial. It compared 0.3 g/kg bicarbonate in capsules, the same amount in a carbohydrate hydrogel system, and placebo, 90 minutes before exercise. Neither bicarbonate format significantly improved the time trial (overall P = .512). Hydrogel running trial, 2026.
Capsules produced more gastrointestinal symptoms than placebo; hydrogel symptoms did not significantly differ from placebo. Crucially, the direct hydrogel-versus-capsule comparison also did not reach significance for summed symptoms (P = .243). The paper’s stronger wording about superior gut tolerance should be read alongside that result. Blood lactate rose more with both bicarbonate conditions, but bicarbonate and pH were not measured: a marker changed without a demonstrated faster run or directly verified acid–base response. Results and measurement limits.
A September 2026 crossover trial analyzed 11 trained cyclists after one exclusion. Both conditions supplied 80 g carbohydrate/hour during three hours of cycling; one distributed 18 g sodium bicarbonate plus 2 g potassium bicarbonate through gels. Subsequent 12-minute time-trial power was 251 versus 239 W, a paired difference of 12 W (95% CI 3–22 W). Six-second sprint and two-minute time-trial performance did not significantly improve. Norte et al., 2026.
Taste and texture prevented full blinding of participants and the testing investigator. No severe gastrointestinal symptoms were reported; bicarbonate gels were less pleasant. Blood bicarbonate and pH increased. FCT supported the first author’s doctoral work; MNSTRY and Siemens supplied products/equipment. This supports that prolonged, well-fueled cycling protocol, rather than establishing a benefit for my short efforts. Original trial.
Nitrate: distinguish beetroot, extract and measured exposure
In a 12-man crossover trial, six days of beetroot shots providing 400 mg nitrate/day increased total bench-press repetitions by approximately 6.9 repetitions across three sets to failure at 60% of maximum. Perceived effort and lactate did not significantly change; no gastrointestinal discomfort was reported. This was a muscular-endurance finding, with a blackcurrant placebo rather than nitrate-depleted beetroot. It did not measure muscle growth from months of training. Mosher et al., 2016.
A 7 October 2026 crossover trial in 18 resistance-trained men tested nominal 360 mg nitrate from standardized amaranth extract, once or for seven days, 60 minutes before exercise. Five sets to failure at 70% of maximum in bench press and bench pull showed no significant overall benefit in repetitions, fastest repetition velocity or lactate. Selected set differences did not consistently favor nitrate against matched placebo. Rojas-Cepero et al., 2026.
The study did not measure blood or salivary nitrate/nitrite, and periods did not always contain a full supplement-free washout. LifePro and Arjuna supplied products; two authors were LifePro advisers. It cannot show that another beetroot exposure would fail, while the older positive trial cannot guarantee a benefit from this extract or my one-set routine. Methods and limitations.
Product weight is also different from nitrate quantity. A laboratory analysis of 45 lots from 24 beet-juice products found approximately 50-fold variation between products and an average 30% variation between lots of the same product. That survey describes products tested then, rather than certifying today’s shelf. It explains why “beetroot powder, 5 g” alone cannot tell me the exposure used in a performance trial. Gallardo and Coggan, 2019.
What changes my decision now?
These studies refine the case for optional experiments; they do not make a daily supplement list necessary. For my reported routine, the stronger practical priority remains consistent food, appropriate training progression and sleep. Creatine can be considered through a repeatable high-intensity-work question; beta-alanine, nitrate and bicarbonate need an especially clear matching endpoint before adding complexity.
If that endpoint later exists, change one exposure at a time and compare the same task, rests, load and tolerability. Keep fastest effort, total work and fatigue decline as separate observations. A null result in a small trial is not proof of zero possible benefit; an isolated favorable set or subgroup is also insufficient to rescue a broader claim that the study did not establish.
Vegetables can be chosen for taste and ordinary food variety without treating them as assayed performance products. A supplement that makes effort feel easier does not resolve the separate question of shoulder pain or tissue loading.