How much creatine should I take per day?

5 grams of creatine monohydrate per day is the standard maintenance dose. No loading phase is required at this dose. On training days, an additional 5 grams pre-workout is well-tolerated and may improve performance for some users. Take consistently every day — creatine works through saturation, not acute timing.

Is creatine safe for women, older adults, and people who don't lift weights?

Yes. Creatine has been studied in women, older adults, and sedentary populations with consistent safety findings. Benefits extend beyond muscle — cognitive performance, mood, bone density, and recovery from neurological injury. The case for creatine in adults over 40 is increasingly compelling regardless of training status.

Creatine — Why Every Adult Should Take 5 Grams a Day

The case

Creatine is the best-studied supplement in human history.

More than 1,000 published peer-reviewed studies. Meta-analyses across decades. Tested in young men, older adults, women, athletes, sedentary populations, vegetarians, vegans, and clinical patients. Tested for muscle, cognition, mood, brain injury recovery, neurodegenerative disease, and aging.

The findings have been remarkably consistent. Creatine works. The mechanism is well-understood — it expands the cellular phosphocreatine pool, which is the rapid-energy buffer used in any high-output cellular activity from a maximal lift to neuronal firing. More phosphocreatine means more available energy means better performance and resilience.

If a pharmaceutical company had discovered creatine and patented it, it would be a blockbuster prescription drug. It is not patented. It costs about $0.30 per day. And most adults still do not take it.

1,000+

Published studies

More peer-reviewed evidence than any other sports supplement on the market.

~$0.30

Daily cost

Roughly the cost of a stamp. A year of creatine costs less than a month of most "longevity" stacks.

5 g

Standard dose

No loading phase needed. Take it daily. Forever.

"I take creatine. My patients take creatine. My family takes creatine. The data is too good and the cost is too low to skip it. If I could only keep one supplement out of my entire regimen, this would be it."

The benefits

What creatine actually does — beyond the gym.

The framing of creatine as a "lifter's supplement" is true and incomplete. The cellular mechanism is general — wherever the body is doing high-output work that depletes ATP rapidly, creatine helps. That includes brain tissue, heart muscle, and recovery from injury. Here is the full picture.

— Strength & Lean Mass

The foundation finding.

Meta-analyses consistently show 5–15% improvements in strength performance and 1–2 kg of additional lean mass over multi-week supplementation periods, particularly when combined with resistance training. The effect is real, robust, and well-replicated across age groups.

— Cognitive Performance

The under-appreciated story.

Creatine improves working memory, processing speed, and cognitive performance — particularly under stress, sleep deprivation, or in vegetarians/vegans whose dietary creatine is low. The brain is metabolically demanding tissue; phosphocreatine availability matters there too.

— Mood & Brain Health

An emerging antidepressant signal.

Multiple trials show creatine supplementation improves depressive symptoms, particularly in women and as an adjunct to SSRIs. Mechanism likely involves brain energy metabolism. The signal is consistent enough that creatine is increasingly considered in integrative psychiatry.

— Recovery & Injury

Faster recovery, less damage.

Creatine reduces markers of muscle damage after eccentric exercise, accelerates recovery between sessions, and shows promising data in concussion and TBI recovery — the brain's energy crisis post-injury appears to benefit from elevated phosphocreatine.

— Aging & Sarcopenia

The case for older adults.

In adults over 50, creatine paired with resistance training produces meaningful gains in muscle mass, strength, and bone density. For an aging adult, preserving lean mass is preserving healthspan. Creatine is one of the cheapest interventions in that fight.

— Bone Density

An indirect bone benefit.

Resistance training plus creatine appears to improve bone mineral density beyond resistance training alone in older adults. The mechanism is likely the additional load tolerated through stronger muscles plus direct effects on bone-forming cells.

— Vegetarians & Vegans

A dietary gap closed.

Dietary creatine comes from meat. Vegetarians and vegans have measurably lower baseline creatine stores, and supplementation produces larger relative gains in this group across both physical and cognitive endpoints.

— Glucose & Metabolism

Modest metabolic support.

Some studies show improved glucose tolerance and insulin sensitivity with creatine supplementation, particularly when combined with exercise. Not a primary indication, but a nice secondary benefit.

How to take it

Dosing, timing, and the only form that matters.

The simple protocol.

Form

Creatine monohydrate. Period. Not HCl, not ethyl ester, not liquid, not buffered "Kre-Alkalyn." None of the specialty forms have demonstrated superior absorption or efficacy in controlled studies. Save the money.

Daily dose

5 grams once daily. Saturation occurs in roughly 3–4 weeks at this dose without a loading phase. Loading (20 g/day for 5–7 days) is optional and accelerates the timeline; many people skip it because the steady protocol works.

Training days

An additional 5 g pre-workout is well-tolerated and may improve performance for some users — total 10 g on lift days. This is what I personally do. Not required.

Timing

It does not matter much. Take it with a meal or coffee that you already do not skip. Consistency > clock.

With or without food

With food slightly improves uptake. Carbs more so. Not a major effect — and not a reason to add carbs you weren't going to eat.

Cycling

None needed. Take it every day, indefinitely. There is no evidence that breaks improve outcomes.

Brand

Look for third-party tested (NSF, Informed Sport, USP) and ideally Creapure-licensed. I personally use Thorne. No commercial relationship — they make a clean product, and that's the only reason I named them.

Who should take it

Almost everyone. Specifically:

Adults who lift weights. The strength and lean-mass case is overwhelming. Take it.
Adults over 40, regardless of training status. Sarcopenia prevention, bone density, cognition, recovery — the case strengthens with age, not weakens.
Women. The myths about creatine "bulking" are not supported by evidence. Women benefit on every measured endpoint and in some cases (mood, depression) more than men.
Vegetarians and vegans. You have lower baseline stores. The supplement closes a measurable dietary gap.
Patients on SSRIs or with depressive symptoms. The adjunct benefit is documented and worth a conversation with your physician.
Patients recovering from concussion or TBI. The evidence is preliminary but mechanistically grounded. Discuss with your physician.
Endurance athletes. The reflexive idea that creatine is only for "explosive" sports is dated. Endurance athletes benefit on lean mass, recovery, and high-intensity intervals within endurance sessions.

Honest concerns

What about kidneys, hair loss, water retention?

Kidney function — fine in healthy adults. Decades of evidence consistently show no kidney harm in healthy individuals at standard doses. The myth originates from elevated creatinine on labs (a creatine breakdown product), which is a measurement artifact, not a kidney injury. Patients with pre-existing kidney disease should discuss with their physician.
Hair loss — uncertain. A single 2009 study showed elevated DHT in rugby players on creatine. The finding has not been replicated. Real-world hair-loss attribution to creatine remains anecdotal. If you are highly sensitive to androgenic effects, this is a conversation, not a contraindication.
Water retention — minor and intramuscular. Creatine pulls water into muscle cells (where you want it). Subcutaneous "puffiness" is not a typical creatine effect. Some people do notice 1–3 lb of water-weight gain in the first few weeks. This is normal and reflects the saturation process.
GI distress — dose-dependent and form-dependent. If 5 g causes any upset, split it into two 2.5 g doses or take it with a larger meal. Bulk powders that don't dissolve well can be the culprit. Switch brands if needed.
Cramping — myth. Multiple studies have shown creatine reduces cramping if anything, not increases it. Hydration matters; creatine itself is not the cause.

Frequently asked

Creatine, asked and answered.

Do I need to load creatine?: No. Loading (20 g/day for 5–7 days) saturates muscle stores faster, but standard 5 g daily reaches the same saturation in 3–4 weeks with less GI risk. Most adults skip the loading phase. Take 5 g daily, every day, and forget about it.
Is creatine safe for teenagers?: Adolescents who have completed a meaningful portion of growth (post-puberty) tolerate creatine well in studies. The conservative recommendation in our practice is to wait until 17–18 unless there's a specific clinical reason. Discuss with the teen's physician.
Does creatine help with mental illness or cognitive decline?: Adjunctively, possibly. Creatine has shown benefit in depression (especially in women), in cognitive performance under stress and sleep deprivation, and is being studied in cognitive decline. It is not a primary treatment for any mental illness — it is a candidate adjunct that is exceptionally low-risk.
Should I take creatine if I'm not training?: Yes. The cognitive, mood, and aging benefits do not require resistance training. The strength benefits do. Most people notice the strongest effects when paired with training, but the supplement still produces real benefits in sedentary adults — particularly older adults.
Will creatine make me gain weight?: 1–3 lb of intramuscular water in the first month is typical. This is not fat gain. Lean mass typically increases over the longer term if combined with training. For most patients seeking weight loss, the body composition effect is favorable.
Do I need to drink extra water?: You need adequate water — which most adults are not getting anyway. Creatine does not specifically dehydrate you, but at any training volume, hydration is the cheapest performance lever you have. Standard hydration habits are sufficient.
Can I mix creatine with my pre-workout, protein, or coffee?: Yes. Mix it into anything you already drink. Creatine is stable in solution for hours and tolerates heat. The "don't mix with coffee" myth has been thoroughly debunked.
What's the difference between Thorne and the cheaper options?: Mostly third-party testing rigor and quality control. The molecule is identical across brands. If you choose any third-party-tested monohydrate (NSF, Informed Sport, USP-verified), you are getting what you paid for. I use Thorne because their QC is consistent and I have no reason to switch.

Continue building the protocol.

Editorial note. This article summarizes the published evidence base on creatine monohydrate as of May 2026. Individual response to supplements varies. Patients with kidney disease, those on medications, or those with specific clinical conditions should discuss creatine supplementation with their physician before starting. Dr. Hare has no commercial relationship with Thorne or any supplement brand mentioned. Brand citations reflect personal use only.

Creatine — why every adult should take 5 grams a day.

Creatine is the best-studied supplement in human history.

What creatine actually does — beyond the gym.

The foundation finding.

The under-appreciated story.

An emerging antidepressant signal.

Faster recovery, less damage.

The case for older adults.

An indirect bone benefit.

A dietary gap closed.

Modest metabolic support.

Dosing, timing, and the only form that matters.

The simple protocol.

Almost everyone. Specifically:

What about kidneys, hair loss, water retention?

Creatine, asked and answered.

Continue building the protocol.

Build the protocol that fits you.

Creatine is the best-studied supplement in human history.

What creatine actually does — beyond the gym.

The foundation finding.

The under-appreciated story.

An emerging antidepressant signal.

Faster recovery, less damage.

The case for older adults.

An indirect bone benefit.

A dietary gap closed.

Modest metabolic support.

Dosing, timing, and the only form that matters.

The simple protocol.

Almost everyone. Specifically:

What about kidneys, hair loss, water retention?

Creatine, asked and answered.

Continue building the protocol.

Dr. Hare's daily protocol

Peptide therapy in Dalton, GA

Medical weight loss program

Hormone optimization (TRT / BHRT)

Build the protocol that fits you.