Condiciones de salud que creatina puede ayudar a apoyar.
Creatine has been extensively studied in ALS due to its role in mitochondrial energy metabolism and neuroprotection. Multiple placebo-controlled clinical trials tested 5–10 g/day in ALS patients, but a Cochrane review of three trials (n=386) found no significant benefit on survival or ALSFRS-R progression. Animal models showed promising survival benefit, but this did not translate to humans.
Creatine and phosphocreatine possess documented direct antioxidant properties, including reactive oxygen species scavenging and mitochondrial membrane stabilization. In vitro and animal studies demonstrate protection against oxidative stress, and indirect antioxidant effects (via maintaining cellular energy homeostasis) are well-supported mechanistically.
Creatine is among the most extensively studied ergogenic aids in sports science. The ISSN position stand and multiple systematic reviews confirm it increases intramuscular phosphocreatine stores, improving high-intensity exercise performance, strength, and lean mass. A 2025 meta-analysis of 69 RCTs confirmed significant improvements in bench press and squat strength. Typical dosing is 3–5 g/day monohydrate.
Clinical evidence suggests creatine supplementation, particularly combined with exercise, may improve glucose regulation through enhanced GLUT-4 transporter activity. Proposed mechanisms include increased beta-cell insulin secretion and improved muscle glycogen storage. A 2021 systematic review and meta-analysis found null effects on fasting glucose overall, though individual trials in diabetic populations showed benefit.
Several RCTs indicate creatine supplementation combined with resistance training may attenuate age-related bone mineral density loss and increase bone area in older adults, though the independent effect of creatine beyond exercise alone remains contested. A meta-analysis of five RCTs found no statistically significant added benefit of creatine over resistance training alone on BMD at major sites. Benefits appear exercise-dependent.
Creatine supports the recycling of ATP in both muscle and brain tissue. A study in Scientific Reports found a single high-dose of creatine significantly improved cognitive performance and brain energy metabolism in sleep-deprived subjects. Multiple RCTs show creatine supplementation improves working memory and intelligence, especially under cognitively demanding or sleep-deprived conditions associated with brain fog.
Creatine is phosphorylated by creatine kinase to phosphocreatine (PCr), the cell's fastest ATP-regenerating system. Extensive clinical evidence confirms creatine supplementation increases intramuscular PCr stores, accelerates ATP resynthesis during high-intensity exercise, and supports cellular energy in muscle and brain tissue.
Multiple RCTs and a 2026 meta-analysis of 8 RCTs found creatine supplementation does not produce statistically significant changes in total cholesterol, LDL-cholesterol, or HDL-cholesterol. Evidence is low to very low certainty, and creatine does not appear to be a meaningful cholesterol-modifying agent.
Creatine is a well-established ergogenic supplement that maintains ATP availability in muscle and brain, directly countering energy depletion and fatigue during high-intensity activity. Multiple systematic reviews and meta-analyses confirm its efficacy for reducing fatigue and improving performance. It also shows promise for mental fatigue, sleep deprivation, and certain neuromuscular conditions associated with fatigue.
Creatine supplementation has been studied in the context of age-related cognitive decline, with a 2026 systematic review finding positive associations with memory and attention in older adults in 83% of included studies. A 2025 pilot trial in Alzheimer's disease patients demonstrated feasibility, increased brain creatine levels, and improvements across multiple cognitive composites.
Creatine plays a central role in cerebral energy metabolism and directly addresses the post-concussion 'energy crisis' by replenishing ATP via the phosphocreatine shuttle. A pediatric study by Sakellaris et al. (2006/2008) found creatine supplementation (0.4 g/kg/day for 6 months) in 39 youth with TBI significantly improved cognitive function, self-care, and reduced headache, dizziness, and fatigue versus controls. Multiple systematic reviews, a 2025 U.S. DoD Information Paper, and a 2025 scoping review in JISSN support creatine as a promising adjunct for mTBI recovery.
Creatine has emerging evidence as an adjunct for depression, particularly in treatment-resistant and female depression. A randomized controlled trial found creatine monohydrate augmentation of SSRI therapy significantly improved HAM-D scores. It addresses impaired brain bioenergetics (phosphocreatine/ATP system) documented in MDD.
Creatine is a naturally occurring compound that donates phosphate groups to regenerate ATP during high-intensity exercise, directly supporting rapid energy production. Hundreds of RCTs confirm it enhances performance in short-duration, high-intensity tasks. The ISSN position stand classifies creatine monohydrate as the most effective ergogenic nutritional supplement for athletes.
A 16-week randomized, double-blind, placebo-controlled trial demonstrated that creatine supplementation improved muscle function in fibromyalgia patients, with an 80.3% increase in intramuscular phosphorylcreatine. An earlier open-label study reported improvements in pain, quality of life, and sleep. Evidence base is small but clinical in design.
Creatine supports brain energy metabolism by buffering ATP availability via the phosphocreatine shuttle. A 2024 meta-analysis of 16 RCTs (n=492 adults) found moderate-certainty evidence for positive effects on memory, with lower certainty evidence for attention and processing speed. Effects are strongest in individuals with low dietary creatine (vegetarians/vegans), the elderly, and during sleep deprivation.
A clinical study in sprinters and long-distance runners demonstrated that creatine supplementation significantly increased GH levels after 6 weeks. Creatine is proposed to support GH indirectly through enhanced exercise performance and acute metabolic effects that stimulate pituitary GH release. This study and supporting references are cited in authoritative nutrition sources including Healthline and Examine.com.
Accumulating evidence from multiple RCTs and systematic reviews supports creatine supplementation—primarily combined with resistance training—as a viable strategy to attenuate sarcopenia, preserve muscle mass, and maintain functional ability in older adults. Effects on bone, fat mass, and cognitive function in aging populations are also documented, though evidence varies by outcome.
The heart relies heavily on the phosphocreatine/creatine kinase system for sustained ATP production. Cardiac creatine depletion is a documented hallmark of heart failure and correlates with reduced ejection fraction and mortality. Preliminary clinical trials suggest creatine may support skeletal muscle performance and vascular health in cardiac patients, though large-scale RCTs remain lacking.
Creatine supplementation can lower plasma homocysteine by reducing the body's endogenous demand for creatine synthesis, which is one of the largest consumers of S-adenosylmethionine (SAM)–derived methyl groups. By sparing SAM from creatine synthesis, more methyl groups are available for homocysteine remethylation. Animal models and human data support this mechanism, with a specific RCT case study showing 5 g/day creatine reduced homocysteine by 49% in an MTHFR 677TT homozygote.
Creatine may improve insulin sensitivity through enhanced GLUT-4 translocation and increased muscle glucose uptake, particularly when combined with exercise. Clinical evidence is mixed: some trials in insulin-resistant and type 2 diabetic populations show benefit, while studies in healthy untrained individuals show no effect on insulin action.
A systematic review and meta-analysis of RCTs found creatine supplementation significantly improved memory performance in healthy individuals, with the largest effects in older adults and under conditions of metabolic stress such as sleep deprivation. Short-term memory and intelligence/reasoning show the most consistent benefit across trials.
Creatine supplementation has been shown to increase brain phosphocreatine stores and improve cognitive processing speed, complex deductive tasks, and reaction speed, particularly during states of mental fatigue or sleep deprivation. A 2024 RCT using MRS confirmed brain creatine elevation accompanied cognitive improvements after a single high dose.
Creatine supports mitochondrial energy metabolism through the phosphocreatine shuttle, which transfers high-energy phosphate from mitochondria to cytoplasmic sites of ATP demand. Clinical trials in primary mitochondrial disorders have shown improvements in muscle strength and exercise capacity. It is included in evidence-based mitochondrial disorder supplement protocols.
Creatine is among the most extensively studied ergogenic aids for muscle recovery, replenishing phosphocreatine stores depleted during high-intensity exercise and helping restore ATP. Meta-analyses and systematic reviews confirm it attenuates exercise-induced creatine kinase elevation and may reduce force-production loss post-exercise. The ISSN endorses 3–5 g/day as effective for performance and recovery.
Creatine supplementation is supported by RCT evidence for reducing exercise-induced muscle damage and aiding recovery from soreness. A 2025 double-blind RCT found creatine accelerated recovery of muscle function, reduced stiffness, and decreased fatigue after eccentric exercise. Its mechanism involves phosphocreatine resynthesis and reduced secondary muscle damage.
Creatine has been studied as an adjunct for neuromuscular diseases including MG. A meta-analysis of 6 RCTs in muscle diseases showed creatine supplementation produced a mean 8.5% improvement in muscle strength vs. placebo. A 2001 case study directly examined creatine supplementation in an MG patient, and the Life Extension integrative MG protocol explicitly cites creatine alongside vitamin D3 and astragalus for MG.
Creatine was investigated in Parkinson's disease in multiple trials based on its mitochondrial-supportive and neuroprotective properties. A large NINDS-sponsored Phase III NET-PD trial of creatine monohydrate (10 g/day) in early PD was stopped for futility in 2013. Prior Phase II results had been mixed but suggestive, and the APDA notes clinical trials showed no benefit.
Creatine is an IOC-recognized ergogenic aid that elevates skeletal muscle phosphocreatine, enhancing ATP resynthesis for high-intensity efforts. A 2023 systematic review and meta-analysis confirmed it improves endurance performance in trained populations, particularly in sprint-intensive endurance events and repeated bouts. Benefits for steady-state aerobic endurance are more modest, but co-ingestion with carbohydrates enhances glycogen storage.
Creatine supplementation is supported by evidence for preventing post-surgical muscle loss and enhancing rehabilitation outcomes. It increases phosphocreatine stores in muscle, providing rapid energy during post-operative physical therapy. Creatine monohydrate is identified in multiple narrative reviews as having robust research for mitigating surgical-induced muscle atrophy after orthopedic procedures.
Creatine has been investigated specifically for post-COVID fatigue in a clinical trial, showing fatigue reduction after 3 months of supplementation in post-COVID fatigue syndrome patients (Food Science & Nutrition RCT). Post-COVID patients have lower creatine levels in brain and muscles. Creatine supports cellular energy production (ATP-PCr system) and neuroprotection relevant to post-viral fatigue.
A small RCT in older adults found 4 weeks of creatine monohydrate supplementation produced a significant improvement in fasting triglycerides, while having no effect on total cholesterol, LDL, or HDL. However, a 2026 systematic review and meta-analysis of 8 RCTs found no statistically significant effect on triglycerides overall, with very low certainty of evidence.
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