The First Hour: Creatine and Beet Nitrate Before You Move

Most supplement advice fails on logistics rather than pharmacology. A compound performs in a trial, the label says take it daily, and six weeks later the tub is behind the olive oil. The two compounds below survive that test for a dull reason: they dissolve into food a person is already sitting down to eat, at the one hour of the day that reliably exists.

They are also, arguably, the two best-evidenced non-prescription things to take before moving, and they work by mechanisms with nothing to do with each other. One refills an energy buffer inside the muscle cell. The other widens the plumbing feeding it. Neither is a stimulant. And neither has ever been tested alongside the other in a randomized trial, which is the honest headline and the reason this page ends where it does.

Creatine: the dose is boring and the evidence is not

Creatine monohydrate is the most-studied ingredient in the supplement aisle, and the cheapest form of it is the form the trials used. An analysis of creatine's chemistry found that close to 99% of an oral dose is either taken up by muscle or excreted unchanged in urine, and that no newer form — hydrochloride, buffered, liquid, nitrate salt — has been shown to be a more effective source than plain monohydrate. A 2022 critical review of the same question reached the same place: monohydrate remains the only form with substantial evidence behind its bioavailability, efficacy and safety. The premium versions are a pricing strategy, not a pharmacological one.

For adults past fifty, the trial that matters is not a sports study. A 2017 meta-analysis pooled 22 randomized trials and 721 participants with mean ages of 57 to 70, every one of them doing resistance training two to three days a week for somewhere between seven and fifty-two weeks. Creatine added 1.37 kg of lean tissue over placebo, with standardized effects of 0.35 on chest press and 0.24 on leg press.

The condition buried in that sentence is the entire protocol. Every arm of every trial in that analysis was lifting something. Creatine is not a compound that builds muscle; it is a buffer that lets a hard set be slightly harder and the next one come slightly sooner, and the muscle is built by the sets. Taken without training, the honest expectation is a couple of pounds of intracellular water and very little else.

The dose is unglamorous. The International Society of Sports Nutrition's position stand puts habitual intake at about 3 g a day, notes that the widely marketed "loading phase" is optional rather than necessary, and reports that supplementation has been studied at up to 30 g a day for five years in clinical populations without medically significant side effects. Three to five grams, daily, indefinitely. There is no cycling, no window, no stack.

On the brain, the literature is genuinely unsettled, and it is worth saying so plainly rather than picking the flattering half. A 2023 meta-analysis of memory outcomes found an overall effect of 0.29, which broke down into 0.88 in adults aged 66 to 76 and essentially nothing — 0.03 — in people aged 11 to 31. That reads like a clean story about aging brains. But a 2024 meta-analysis of 16 trials and 492 participants found improvements in memory, attention time and processing speed while finding no significant effect on overall cognitive function or executive function, and its own subgroup analysis put the benefit in people aged 18 to 60 rather than in the oldest group. Two careful reviews of overlapping evidence disagree about who benefits. That is what an open question looks like, and anyone selling creatine as a brain supplement is well out in front of it.

Dietary nitrate: buy the milligrams, not the beet

Nitrate from vegetables is not itself active. Swallowed, it is concentrated into saliva, reduced to nitrite by bacteria living on the back of the tongue, and only then converted to nitric oxide, which relaxes blood vessels. The 2008 experiment that established this in humans gave healthy volunteers 500 mL of beetroot juice and measured a maximum blood-pressure fall of about 10.4/8 mmHg roughly three hours later, tracking the rise in plasma nitrite. The elegant part was the control: when the investigators interrupted the mouth's conversion step, the nitrite rise, the blood-pressure drop and the effect on platelets all disappeared together.

For deciding what to buy, the useful trial is the 2013 dose-response study. Ten healthy men took concentrated beetroot juice at 4.2, 8.4 or 16.8 mmol of nitrate. The lowest dose did not change the physiological response to exercise at all. The middle dose cut the steady-state oxygen cost of moderate exercise by about 3% and extended time to task failure by 14%. The highest dose — twice the middle one — added nothing further. So the window is roughly 6 to 8 mmol, which is about 400 to 500 mg of nitrate, and past that you are paying for beet.

In older adults the picture is narrower and should be reported as such. Twelve healthy 60-to-70-year-olds took about 9.6 mmol of nitrate daily for three days. Resting systolic pressure was lower on nitrate than placebo (115 versus 120 mmHg), diastolic likewise (70 versus 73), and the speed at which oxygen uptake adjusted at the start of treadmill walking improved from 28 to 25 seconds. Six-minute walk distance did not improve. Cognitive testing did not improve. The physiology moved; the performance a person would actually notice did not, in that trial, at that duration.

Which brings up the practical problem with the category. In 2019 two researchers ran 45 lots of 24 different beet products from 21 companies through high-performance liquid chromatography. Nitrate content varied by about 30% between samples of the same product, and roughly fifty-fold between the lowest and highest products tested. Only five of the twenty-four consistently delivered 5 mmol or more per serving — the rough floor for an effect. A beet product without a nitrate figure on the label is not a dose. It is a colour. Look for milligrams of nitrate or mmol, printed, per serving; if the number is absent, so is the reason to buy it.

Concentrated red spinach extract is the usual alternative, and it is a legitimate one, but the doses tested are smaller than the beet literature's. A 2017 crossover study gave 15 recreationally active adults a 1 g dose supplying roughly 90 mg of nitrate; oxygen uptake at the ventilatory threshold rose about 6%, while time to exhaustion was non-significantly lower and circulating nitrite did not measurably rise. Ninety milligrams is about a fifth of what the beet trials used. The extract is a fine source; one gram of it is not the studied dose.

The mouthwash problem

This is the most consequential instruction on the page and the one almost nobody prints. Because the nitrate-to-nitrite step is performed by mouth bacteria, killing them defeats the supplement. In a study of 19 healthy volunteers, a week of chlorhexidine-based antiseptic mouthwash cut oral nitrite production by 90% and plasma nitrite by 25%, and raised systolic and diastolic blood pressure by 2 to 3.5 mmHg. The effect appeared within a day of disrupting the oral flora.

If you use an antibacterial mouthwash, it and dietary nitrate are working against each other. Ordinary brushing is fine. Keep the two hours apart at minimum, and if blood pressure is the reason you are interested in nitrate at all, the mouthwash is worth reconsidering on its own.

Why breakfast, specifically

Creatine does not care what time it arrives. It works by saturating a muscle store over days to weeks, so the only thing that matters is that the dose happens most days. Nitrate is the opposite: it is acute, and plasma nitrite peaks roughly two to three hours after it is swallowed.

So nitrate sets the clock and creatine rides along. Taken at breakfast, the nitrate is at its peak by mid-morning — which is when a walk, a set of stairs, or a session in the garage should happen. Taken at 6 p.m. for a 6 p.m. workout, it has not converted yet. This is the single most common way the supplement is wasted.

Two mechanical notes. Creatine dissolves at about 14 g per litre in room-temperature water but 34 to 45 g per litre between 50 and 60 °C, so five grams disappears into a hot mug of coffee and grits in a cold glass; undissolved grit, not the compound, is the usual cause of the stomach complaints people blame on creatine. And nitrate powders taste of earth, which is why they go into oatmeal, yogurt or a smoothie with cocoa rather than into the coffee.

What this pair has not been shown to do

No randomized trial has tested creatine monohydrate together with dietary nitrate. The rationale for pairing them is mechanistic — different pathways, no obvious conflict — and mechanistic rationale is exactly the kind of reasoning that has produced a long history of supplements that did nothing when finally tested. Two things that each work do not reliably add up.

Three further boundaries, stated plainly. Nitrate did not improve walking distance in the older-adult trial above, so this is not a walking-performance protocol. Creatine's muscle evidence is inseparable from resistance training, so without the training the protocol is mostly an expensive breakfast. And whether caffeine blunts nitrate's vascular effect has not been settled by a trial designed to answer it — the existing studies mix both into multi-ingredient pre-workouts and cannot separate them. If that worries you, put the nitrate in the oatmeal and make the coffee decaf.

Finally, the obvious one: neither compound treats a disease. Blood-pressure findings in trials are not a licence to substitute either of these for a prescription, and nothing here is about preventing falls or fractures.

Who should skip it

• Anyone taking nitrate medication — nitroglycerin, isosorbide — or a PDE5 inhibitor such as sildenafil or tadalafil. Adding dietary nitrate to either can drop blood pressure further than intended. This is a conversation with your prescriber, not a judgement call.
• Anyone on blood-pressure medication should raise it with their clinician first, for the same reason.
• Anyone with kidney disease. Creatine is well tolerated in healthy people at the doses above, but reduced kidney function changes that conversation.
• Pregnancy and nursing — neither has the evidence base to justify it.

How to tell whether it did anything

Eight weeks is long enough for the creatine arm of this to show up in something you can measure at home, provided the training is actually happening. Two tests are worth the trouble because they are the ones the research uses: five-times sit-to-stand, timed, and usual-pace gait speed over a set distance. Both are in the Movement Lab, which runs on your own device and keeps the numbers there.

Record both before you start and again at eight weeks. What you get is an n-of-1 observation with no control group and no blinding, and it can be moved by a good night's sleep, so treat a small change as noise. It is still a great deal more information than the way most people evaluate a supplement, which is by remembering how they felt.

The three shopping rules

For creatine: the ingredients panel should say creatine monohydrate and nothing else. Compare on price per five grams, not price per tub. Ignore the word "advanced." Our graded pick and its full evidence panel sit on the creatine monohydrate page.

For nitrate: the label must state nitrate content per serving in milligrams or mmol. Aim for roughly 400 mg, or 6.5 mmol. If the number is not on the package or the product page, buy a different one — the fifty-fold spread between products is not a rounding error. The beetroot and dietary nitrate page carries the grade and the absorption notes.

For both: put the creatine in something hot and the nitrate in something cold and flavoured, take them at the same sitting, and move within two to three hours. The routine is the active ingredient; everything above is only the reason it is worth having one.