Creatine and Resistance Training: Evidence-Based Guide

Quick Answer

Creatine supplementation enhances maximal strength and exercise performance in young men engaged in resistance training, with significant improvements in Wingate peak power (+71.27 W) and mean power (+39.69 W) [Source 1].

Key Takeaways

• Creatine supplementation in young men (18–30 years) significantly increases Wingate peak power by +71.27 W and mean power by +39.69 W, regardless of training context [Source 1].
• In postmenopausal women, creatine with resistance training improves leg-press 1RM by +7.5 kg (95% CI +2.2 to +12.8; I² = 0%) [Source 2].
• Creatine supplementation does not have clinically relevant effects on lipid profiles, with very low certainty of evidence for total cholesterol and triglycerides [Source 3].
• Risk of bias in creatine studies ranges from "some concerns" to low, with one large RCT at low risk [Source 2].

Clinical Evidence Deep-Dive

The systematic review by Gu Jinfa analyzed randomized controlled trials (RCTs) involving healthy young men aged 18–30 years, assessing creatine's effects on body composition, maximal strength, and exercise performance. The meta-analysis demonstrated a significant increase in Wingate peak power (+71.27 W) and mean power (+39.69 W), with no modification by training context. The study corrected previous errors by excluding ineligible age groups, ensuring robust conclusions [Source 1].

Naddafha S conducted a systematic review focusing on postmenopausal women, evaluating creatine's impact on lean mass and strength. The review included 111 participants across three trials, showing a mean difference (MD) of +7.5 kg in leg-press 1RM (95% CI +2.2 to +12.8). The risk of bias was mostly "some concerns," but one large, preregistered, double-blind RCT was at low risk, supporting the findings with moderate confidence [Source 2].

Gimenez FVM's meta-analysis investigated creatine's effects on lipid profiles, utilizing the Cochrane RoB 2 tool and GRADE system for bias and evidence certainty assessment. The review concluded no clinically relevant effects on lipid profiles, with very low certainty for total cholesterol and triglycerides, and low certainty for LDL-C and HDL-C. This suggests that creatine's benefits are likely limited to muscle performance rather than systemic metabolic changes [Source 3].

Practical Protocol

Clinical reference - consult a physician: Creatine monohydrate supplementation is typically administered at doses of ≥5 g per day. This dosage is associated with small but meaningful gains in lean mass and strength, particularly when combined with resistance training [Source 2].

FAQ

Does creatine supplementation affect lipid profiles? Creatine supplementation does not demonstrate clinically relevant effects on lipid profiles, with evidence certainty ranging from very low to low [Source 3].

Is creatine effective for postmenopausal women? Yes, creatine supplementation, particularly ≥5 g/day with resistance training, yields small but meaningful gains in lean mass and strength in postmenopausal women [Source 2].

What are the benefits of creatine in young men? Creatine significantly increases maximal strength and exercise performance, with improvements in Wingate peak and mean power in young men engaged in resistance training [Source 1].

References

1. Correction: Creatine supplementation in young men under resistance versus non-resistance training: a systematic review and meta-analysis of strength, performance, and lean mass. Gu Jinfa. 2026. https://pmc.ncbi.nlm.nih.gov/articles/PMC13231500/
2. Creatine monohydrate for lean mass, strength, and bone density in postmenopausal women: a systematic review and meta-analysis. Naddafha S. 2026. https://pmc.ncbi.nlm.nih.gov/articles/PMC13182165/
3. Does creatine affect lipid profile? a systematic review and meta-analysis of randomized placebo-controlled trials. Gimenez FVM. 2026. https://pmc.ncbi.nlm.nih.gov/articles/PMC13194357/
4. Creatine supplementation in young men under resistance versus non-resistance training: a systematic review and meta-analysis of strength, performance, and lean mass. Gu J. 2026. https://pmc.ncbi.nlm.nih.gov/articles/PMC13099317/