What is the recommended dose of Creatine?

- **Loading protocol (optional):** 0.3g/kg bodyweight/day for 5-7 days, split into 4 doses. For a 180lb person: ~25g/day. Saturates muscles faster. - **Maintenance dose:** 3-5g per day (or 0.03g/kg...

Is Creatine safe to take daily?

Creatine is rated "Prescription Interactions" based on clinical evidence. - **Common:** Gastrointestinal discomfort (most common during loading phase and in older adults), weight gain (1-3 lbs from water retention in muscles — this is normal and expected) - **Rare (case reports only, not confirmed i

Reviewed by the Scan Dose Research Team and Clinical Advisory Board

Creatine

Creator: Scan Dose Research Team
Published: 2026-04-01

STRONG EVIDENCEAmino AcidLast updated April 5, 2026

SCAN DOSE SUMMARY

Creatine is the single most researched sports supplement in existence — backed by 168 randomized controlled trials, 19 meta-analyses, and over 17,000 participants. Our research confirms it reliably increases muscle strength, power output, and lean mass. It also shows emerging benefits for cognition and mood. If you exercise and take one supplement, this should be it. Creatine monohydrate is the gold standard form — cheaper and better-studied than every alternative.

EVIDENCE GRADES

Muscle Creatine ContentStrong — 10 studies, 194 participants, large increase

StrengthStrong — 7 studies, 142 participants

Exercise-Induced OxidationStrong — 5 studies, 469 participants

Power OutputModerate — 5 studies, 469 participants, large improvement

Muscle MassModerate — 11 studies, 269 participants

Anaerobic CapacityModerate — 8 studies, 224 participants

Body FatModerate — 4 studies, 83 participants, small decrease

Depression SymptomsModerate

Muscular EnduranceModerate — 3 studies, 68 participants

WHAT IT DOES

Increases muscle strength and power — Grade A evidence. The most reliable ergogenic supplement available. Works by replenishing ATP during high-intensity exercise.
Increases lean body mass — Grade B evidence from 11 studies. Partly from water retention in muscles, partly from actual muscle growth over time with training.
Improves anaerobic capacity — Grade B evidence from 8 studies. Better performance in sprints, HIIT, and explosive movements.
Reduces exercise-induced oxidative stress — Grade A evidence. Protective effect against cellular damage from intense training.
May support cognition — Emerging evidence suggests creatine can enhance short-term memory and reasoning, especially under sleep deprivation or stress.
May improve depression symptoms — Grade B evidence, particularly as an adjunct to antidepressants.

OPTIMAL DOSAGE

Loading protocol (optional): 0.3g/kg bodyweight/day for 5-7 days, split into 4 doses. For a 180lb person: ~25g/day. Saturates muscles faster.
Maintenance dose: 3-5g per day (or 0.03g/kg bodyweight minimum). This is the simpler approach — skip loading entirely and just take 5g daily.
Best form: Creatine monohydrate. Period. Most studied, cheapest, most effective. Micronized monohydrate dissolves better in water but is functionally identical.
Timing: No strong evidence for pre- vs post-workout. Consistency matters more than timing. Taking it with a meal may improve absorption slightly.
With food or empty stomach: Either works. Some evidence suggests taking with carbohydrates or protein improves uptake.
Cycling: Not necessary. Long-term daily use appears safe based on years of research data.

Scan a supplement containing Creatine

DRUG INTERACTIONS

Caffeine (>300mg/day)Severe

Complex interaction

People with Parkinson's should avoid combining. For exercise: take caffeine acutely rather than daily with creatine.

Nephrotoxic drugs (NSAIDs, aminoglycosides, cyclosporine, lithium)Moderate

Additive kidney stress

Avoid in people with kidney disease. Monitor kidney function if combining.

Ephedrine/Ma HuangUnknown

Possible stroke risk

Avoid combining with ephedra-containing products.

Nephrotoxic supplementsUnknown

Additive kidney stress

Caution with other supplements that may stress kidneys.

SAFETY PROFILE

Side Effects

Common: Gastrointestinal discomfort (most common during loading phase and in older adults), weight gain (1-3 lbs from water retention in muscles — this is normal and expected)
Rare (case reports only, not confirmed in controlled trials): Kidney dysfunction, lower leg compartment syndrome, rhabdomyolysis, stroke (one case with concurrent ephedra use), liver injury, atrial fibrillation
Important context: The best evidence from controlled studies shows creatine side effects do not differ from placebo. The serious adverse events above are from case reports only, often with confounding factors.

Drug Interactions

Precautions

Pregnancy: Caution. No reliable human evidence on safety during pregnancy. Preclinical evidence suggests low risk, but no clinical trials confirm this.
Breastfeeding: Caution. No human evidence available.
Children: Generally considered safe in adolescents at standard doses, but consult a healthcare provider.
Established kidney disease: Use with caution. Case reports suggest kidney dysfunction in people with pre-existing kidney problems. Healthy kidneys handle creatine fine — the myth that creatine damages healthy kidneys is not supported by evidence.
Parkinson's disease: Avoid combining creatine with high-dose caffeine (>300mg/day) — evidence suggests faster disease progression.
Surgery: No specific concerns, but disclosure to the surgical team is good practice.

WADA Status

Not Prohibited. Creatine is not on the 2026 WADA List of Prohibited Substances.

WHO SHOULD BE CAREFUL

HOW SCAN DOSE SCORES THIS

Present in proper dose (3-5g/day creatine monohydrate):✅ Green flag — the most evidence-backed sports supplement in existence

Underdosed (<2g/day):⚠️ Yellow flag — below effective maintenance dose

In a proprietary blend:⚠️ Yellow flag — creatine needs specific dosing (3-5g) that proprietary blends often don't deliver

Alternative forms (creatine HCl, buffered creatine, creatine ethyl ester):⚠️ Yellow flag — less studied and not proven superior to monohydrate despite higher price

Combined with high-dose caffeine daily:⚠️ Yellow flag — may reduce some creatine benefits with chronic co-use

CLINICAL REFERENCES

ISSN confirms creatine monohydrate is the most effective ergogenic nutritional supplement, with no evidence of adverse effects in healthy individuals at recommended doses.

Kreider RB et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation.. J Int Soc Sports Nutr (2017). PMID: 35273429

Meta-analysis confirmed significant improvements in upper and lower body strength with creatine supplementation.

Forbes SC et al. Creatine supplementation and strength: A systematic review and meta-analysis.. J Cachexia Sarcopenia Muscle (2022). PMID: 34445003

Creatine is safe and beneficial for women, with potential cognitive and mood benefits beyond exercise performance.

Smith-Ryan AE et al. Creatine Supplementation in Women's Health.. Nutrients (2021). PMID: 31469823

Meta-analysis suggests creatine improves short-term memory and reasoning, especially under stress or sleep deprivation.

Avgerinos KI et al. Effects of creatine supplementation on cognitive function.. Exp Gerontol (2018). PMID: 29704637

Creatine does not cause kidney damage in healthy individuals, dehydration, or muscle cramping — all are myths unsupported by evidence.

Antonio J et al. Common questions and misconceptions about creatine supplementation.. J Int Soc Sports Nutr (2021). PMID: 32452524

RELATED RESEARCH

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Acetyl-L-CarnitineMeta-analysis of 21 double-blind RCTs found significant cognitive improvement in MCI and early Alzhe

L-ArginineMeta-analysis of 11 RCTs: arginine reduced systolic BP by 5.39 mmHg and diastolic by 2.66 mmHg at do

BCAAs / EAAs

Quality Testing Intelligence

Based on independent third-party laboratory analysis

Category pass rate: ~85% for powder/capsule. 25% of creatine GUMMIES contained ZERO creatine — avoid gummy form entirely.

Scan Your Creatine Supplement Browse all ingredients

Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated: April 5, 2026

Not medical advice. Based on published clinical research and systematic reviews.

Reviewed by the Scan Dose Research Team and Clinical Advisory Board

Creatine

STRONG EVIDENCEAmino AcidLast updated April 5, 2026

SCAN DOSE SUMMARY

EVIDENCE GRADES

Muscle Creatine ContentStrong — 10 studies, 194 participants, large increase

StrengthStrong — 7 studies, 142 participants

Exercise-Induced OxidationStrong — 5 studies, 469 participants

Power OutputModerate — 5 studies, 469 participants, large improvement

Muscle MassModerate — 11 studies, 269 participants

Anaerobic CapacityModerate — 8 studies, 224 participants

Body FatModerate — 4 studies, 83 participants, small decrease

Depression SymptomsModerate

Muscular EnduranceModerate — 3 studies, 68 participants

WHAT IT DOES

Increases muscle strength and power — Grade A evidence. The most reliable ergogenic supplement available. Works by replenishing ATP during high-intensity exercise.
Increases lean body mass — Grade B evidence from 11 studies. Partly from water retention in muscles, partly from actual muscle growth over time with training.
Improves anaerobic capacity — Grade B evidence from 8 studies. Better performance in sprints, HIIT, and explosive movements.
Reduces exercise-induced oxidative stress — Grade A evidence. Protective effect against cellular damage from intense training.
May support cognition — Emerging evidence suggests creatine can enhance short-term memory and reasoning, especially under sleep deprivation or stress.
May improve depression symptoms — Grade B evidence, particularly as an adjunct to antidepressants.

OPTIMAL DOSAGE

Loading protocol (optional): 0.3g/kg bodyweight/day for 5-7 days, split into 4 doses. For a 180lb person: ~25g/day. Saturates muscles faster.
Maintenance dose: 3-5g per day (or 0.03g/kg bodyweight minimum). This is the simpler approach — skip loading entirely and just take 5g daily.
Best form: Creatine monohydrate. Period. Most studied, cheapest, most effective. Micronized monohydrate dissolves better in water but is functionally identical.
Timing: No strong evidence for pre- vs post-workout. Consistency matters more than timing. Taking it with a meal may improve absorption slightly.
With food or empty stomach: Either works. Some evidence suggests taking with carbohydrates or protein improves uptake.
Cycling: Not necessary. Long-term daily use appears safe based on years of research data.

Scan a supplement containing Creatine

DRUG INTERACTIONS

Caffeine (>300mg/day)Severe

Complex interaction

People with Parkinson's should avoid combining. For exercise: take caffeine acutely rather than daily with creatine.

Nephrotoxic drugs (NSAIDs, aminoglycosides, cyclosporine, lithium)Moderate

Additive kidney stress

Avoid in people with kidney disease. Monitor kidney function if combining.

Ephedrine/Ma HuangUnknown

Possible stroke risk

Avoid combining with ephedra-containing products.

Nephrotoxic supplementsUnknown

Additive kidney stress

Caution with other supplements that may stress kidneys.

SAFETY PROFILE

Side Effects

Common: Gastrointestinal discomfort (most common during loading phase and in older adults), weight gain (1-3 lbs from water retention in muscles — this is normal and expected)
Rare (case reports only, not confirmed in controlled trials): Kidney dysfunction, lower leg compartment syndrome, rhabdomyolysis, stroke (one case with concurrent ephedra use), liver injury, atrial fibrillation
Important context: The best evidence from controlled studies shows creatine side effects do not differ from placebo. The serious adverse events above are from case reports only, often with confounding factors.

Drug Interactions

Precautions

Pregnancy: Caution. No reliable human evidence on safety during pregnancy. Preclinical evidence suggests low risk, but no clinical trials confirm this.
Breastfeeding: Caution. No human evidence available.
Children: Generally considered safe in adolescents at standard doses, but consult a healthcare provider.
Established kidney disease: Use with caution. Case reports suggest kidney dysfunction in people with pre-existing kidney problems. Healthy kidneys handle creatine fine — the myth that creatine damages healthy kidneys is not supported by evidence.
Parkinson's disease: Avoid combining creatine with high-dose caffeine (>300mg/day) — evidence suggests faster disease progression.
Surgery: No specific concerns, but disclosure to the surgical team is good practice.