Is Creatine Right for Me? Uses, Benefits, and Safety Explained

Note: The U.S. Food and Drug Administration (FDA) does not approve supplements for safety or effectiveness. Talk to a healthcare professional about whether a supplement is the right fit for your individual health, and about any potential drug interactions or safety concerns.
If you’re the kind of person who shops for popular dietary supplements like protein or collagen powder, you’ve probably seen another bottle on the shelves: creatine.
Do I Need to Take a Creatine Supplement?
Your body stores creatine in your muscles so you can have quick access to it for fast, high-intensity movements like sprinting or powerlifting, says Autumn Bates, the founder of Autumn Elle Nutrition and a certified clinical nutritionist in Santa Barbara, California.
Additional creatine beyond what’s already in a healthy, balanced diet isn’t really necessary for most people, Bates adds. “Creatine isn’t an essential nutrient,” she says. “Your body naturally makes it from other amino acids you receive from various protein sources.”
This supplement comes in a few forms, and they’re not all the same. “There’s much debate on which type has the highest bioavailability, meaning which is absorbed the best,” Bates says.
Why Do People Take Creatine Supplements?
The most common use of creatine supplements is to help reach athletic goals. Bodybuilders, weight lifters, endurance runners, and other athletes use it to build muscle and enhance performance, stamina, and recovery time.
Creatine is especially helpful in sports that require brief, high-intensity activities like sprinting or throwing a baseball pitch. “Short, fast movements use a different energy system than aerobic exercise,” says Bates. “They mainly use creatine. So in theory, the higher creatine stores you have, the more time you have until you fatigue.”
How Much Creatine Do I Need for Muscle Growth?
If you’re not lifting heavy weights, doing high-intensity workouts, or eating a mainly vegan or vegetarian diet, your body probably makes as much creatine as it needs. Your body is likely already making enough if you’re consuming a balanced diet that includes animal products, says Bates.
Protein sources like beef, chicken, pork, and fish help your body produce the creatine it needs. While the amount of creatine per serving varies depending on the source, 3 ounces of meat will generally have about 0.4 grams (g) of creatine, Bates says.
If you’re looking to creatine as a supplement for muscle growth, a common protocol is to have a loading period, during which you significantly increase your creatine intake for a few days or weeks. “This can prime your muscles to increase the amount of creatine that they hold,” Bates says.
The amount of creatine that your body uses will also depend on how much muscle mass you have, says Bates. “In general, muscle can hold about 2 to 3 g of creatine per kilogram of muscle mass,” she says.
If you’re interested in upping your creatine consumption, work with your doctor or dietitian to make sure the dose is right for your goals and health history.
Are Creatine Supplements Safe to Take?
Professional and college athletes should make sure to choose a creatine supplement certified by organizations such as NSF Certified for Sport or Informed Sport, which test dietary supplements to make sure they’re free of substances banned by sports organizations.
- Upset stomach
- Bloating
- Diarrhea
- Dehydration
- Water retention
- Heat intolerance
Weight gain might be the most common side effect. “Creatine can cause your body to hold on to water by pulling fluid into your cells via osmosis,” says Bates. “It doesn’t necessarily cause you to gain weight as fat, but it can increase edema, or water weight.”
Also, because muscle is denser than fat, building muscle can increase your overall body weight in some cases, even if you’re simultaneously burning fat.
If you think a creatine supplement may be beneficial for you, we can help you pick the right one. Here's our list of the seven best creatine supplements to boost your workouts.
Does Creatine Have Other Health Benefits?
Creatine may benefit health beyond muscle growth and gains. Bates says, “There has been some really interesting research on creatine in relation to brain health,” particularly in people who may be low in creatine because of diet or other factors.
The Takeaway
- Creatine could be a useful addition to your current workout routine if you’re looking to build muscle mass and reach athletic goals.
- While it may come with side effects like water weight gain, these are usually temporary — for most adults in good health, creatine is safe to take at recommended doses.
- If you have a health problem that impacts your kidneys, it’s best to check with your doctor before adding creatine to your routine.
FAQ
Creatine supplements will help your body produce more energy so you fatigue less during short, high-intensity exercise. Taking creatine can also help you increase muscle mass and strength.
Creatine may cause muscle cramping, diarrhea, gastrointestinal pain, dehydration, weight gain, water retention, and heat intolerance.
Your body creates about 1 to 2 g of creatine daily. Studies have found that taking 20 g of creatine per day for a limited time and 3 to 5 g daily doses after that is effective for building muscle.
It can. Because creatine pulls water into your cells, you will likely put on water weight or weight from having more muscle — but not fat.
Resources We Trust
- Cleveland Clinic: Is the Creatine Loading Phase Worth Doing?
- UCLA Health: Why Everyone’s Talking About Creatine
- Harvard Health Publishing: What Is Creatine? Potential Benefits and Risks of This Popular Supplement
- UW Medicine: Should You Be Taking Creatine? Here's What You Need to Know
- Creatine. Mayo Clinic. December 13, 2023.
- Creatine. Cleveland Clinic. April 26, 2023.
- Kreider RB et al. Creatine Supplementation Is Safe, Beneficial Throughout the Lifespan, and Should Not Be Restricted. Frontiers in Nutrition. April 2025.
- Paray AA et al. Fueling Strength and Recovery: Basics of Creatine Monohydrate, Usage, Benefits, Effectiveness and Misconceptions. International Journal of Research and Review. August 2025.
- Spriet LL. Anaerobic Metabolism During Exercise. Exercise Metabolism. July 2022.
- Drzewiecki A et al. The Effect of Creatine on Muscle Mass Gain: A Literature Review. Quality in Sport. April 2025.
- Doma K et al. The Paradoxical Effect of Creatine Monohydrate on Muscle Damage Markers: A Systematic Review and Meta-Analysis. Sports Medicine. February 2022.
- Furtado ETF et al. Short Term Creatine Loading Improves Strength Endurance Even Without Changing Maximal Strength, RPE, Fatigue Index, Blood Lactate, and Mode State. Health Sciences. May 2024.
- Candow DG et al. Does One Dose of Creatine Supplementation Fit All? Advanced Exercise and Health Science. June 2024.
- Kreider RB et al. Bioavailability, Efficacy, Safety, and Regulatory Status of Creatine and Related Compounds: A Critical Review. Nutrients. February 2022.
- Longobardi I et al. A Short Review of the Most Common Safety Concerns Regarding Creatine Ingestion. Frontiers in Nutrition. November 2025.
- Gutiérrez-Hellín J et al. Creatine Supplementation Beyond Athletics: Benefits of Different Types of Creatine for Women, Vegans, and Clinical Populations—A Narrative Review. Nutrients. December 2024.
- Fares MM et al. Stimuli Creatine/Almond oil Gel Microemuslions as Potential Biomaterials. Journal of Molecular Liquids. September 2025.
- Aron A et al. Effects of Acute Creatine Supplementation on Cardiac and Vascular Responses in Older Men; a Randomized Controlled Trial. Clinical Nutrition ESPEN. October 2024.
- Smith-Ryan AE et al. Creatine in Women’s Health: Bridging the Gap From Menstruation Through Pregnancy to Menopause. Journal of the International Society of Sports Nutrition. May 2025.

Justin Laube, MD
Medical Reviewer
Justin Laube, MD, is a board-certified integrative and internal medicine physician, a teacher, and a consultant with extensive expertise in integrative health, medical education, and trauma healing.
He graduated with a bachelor's in biology from the University of Wisconsin and a medical degree from the University of Minnesota Medical School. During medical school, he completed a graduate certificate in integrative therapies and healing practices through the Earl E. Bakken Center for Spirituality & Healing. He completed his three-year residency training in internal medicine at the University of California in Los Angeles on the primary care track and a two-year fellowship in integrative East-West primary care at the UCLA Health Center for East-West Medicine.
He is currently taking a multiyear personal and professional sabbatical to explore the relationship between childhood trauma, disease, and the processes of healing. He is developing a clinical practice for patients with complex trauma, as well as for others going through significant life transitions. He is working on a book distilling the insights from his sabbatical, teaching, and leading retreats on trauma, integrative health, mindfulness, and well-being for health professionals, students, and the community.
Previously, Dr. Laube was an assistant clinical professor at the UCLA Health Center for East-West Medicine and the David Geffen School of Medicine at UCLA, where he provided primary care and integrative East-West medical consultations. As part of the faculty, he completed a medical education fellowship and received a certificate in innovation in curriculum design and evaluation. He was the fellowship director at the Center for East-West Medicine and led courses for physician fellows, residents, and medical students.

Ashley Mateo
Author
Ashley is a journalist who was raised in New Jersey and schooled in Boston, and now is working in New York City. She's a marathoner, Ironwoman, and amateur photographer. And she has a penchant for traveling the world. She was most recently the site director at Redbook, and has previously been digital deputy editor at Shape, staff writer at Refinery29, news editor at Seventeen, and assistant entertainment editor at SELF. She has also written for Cosmopolitan, Esquire, Runner’s World, Glamour, Marie Claire, Women’s Health, Greatist, Bustle, The Hollywood Reporter, MTV News, Rolling Stone Australia, and more.