Skip to main content

What is creatine? Bodybuilders swear by it, but should you use it?

Here's what the experts have to say about what creative does

Creatine in a spoon on top of spilled creatine
HowToGym / Unsplash

With so many fitness supplements out there, it can be difficult to know what you should and shouldn’t take. From beverages to pills and powders, many companies are claiming that their product is the one for you. Do any of these claims hold any merit? Supplements can be expensive, so knowing their true worth is vital.

Creatine is one common supplement that bodybuilders and other fitness enthusiasts rave about. But what is creatine? Keep reading to learn more about it and whether it will help you with your weight loss or your muscle-building goals, possible side effects, and more.

Recommended Videos

What is creatine?

Creatine supplement.
SWOLY Supplements / Unsplash

Creatine is a naturally occurring compound found in your muscles, brain, and testes. It’s made up of three amino acids: arginine, glycine, and methionine. You can also get creatine in supplement form, such as creatine monohydrate powder, capsules, or gummies.

What does creatine do?

Creatine is like a supercharger for your muscles. It works by increasing the amount of phosphocreatine in your muscles, which allows your body to produce more adenosine triphosphate (ATP), the energy currency of cells.

According to Michael Hamlin, NSCA, CSCS, a personal trainer and founder of Everflex Fitness, “Creatine plays a crucial role in the production of ATP, which is the primary energy source for cellular activities, especially during short bursts of intense physical activity. Extra creatine in the body can help us lift more if we want to improve our performance.”

Creatine benefits

Man lifting weight
Logan Weaver / Unsplash

Creatine is a supplement that’s known for helping you build muscle. But it does way more than that. It can also help you improve your athletic performance, quickly recover from exercise, and reduce fatigue.

Below, we cover some of the potential benefits of taking creatine:

  • Improved athletic performance: Studies have shown that creatine supplementation can enhance high-intensity, short-term exercise performance and improve muscle strength and power output.
  • Increased muscle size: Not only does creatine help your muscles work better, but it can help them look better, too. “Creatine has demonstrated its potential to support muscle growth and hypertrophy,” said Isaac Robertson, personal trainer and nutritionist. “It encourages an increase in water content within muscle cells, promoting a favorable environment for protein synthesis and aiding in the growth of lean muscle mass. This, in turn, can contribute to greater muscle fullness and improved body composition.”
  • Enhanced recovery: Aside from helping you during your workout, creatine can also aid your post-workout recovery. Studies suggest that creatine supplementation may reduce muscle damage and inflammation after exercise, leading to faster recovery and less soreness.
  • Brain health: Creatine isn’t just for physical benefit but can help with cognitive function, too. Some studies have shown that creatine supplementation may improve cognitive performance, especially in tasks that require short-term memory and quick thinking.
  • Skin health: Some studies suggest creatine supplementation may also benefit skin health and aging, such as reducing wrinkles and improving skin hydration.

This list isn’t exhaustive, but it gives you an idea of the potential benefits of creatine supplementation. It’s also important to remember that there’s no guarantee that creatine will work for everyone, and it may have a few side effects, which we’ll cover next.

Possible side effects of creatine 

Man drinking supplement.
Andres Ayrton / Pexels

Creatine is one of the most popular and well-researched supplements out there. It’s generally safe for most people, but like any supplement, it can have some potential creatine side effects.

Here are some of the most common side effects of creatine:

  • Gastrointestinal distress: Some people may experience stomach discomfort, bloating, gas, or diarrhea when taking creatine supplements. “A small number of my clients have had issues like these when taking creatine,” Hamlin said. “If you experience any of these side effects, start with a lower dose and gradually increase it over time.”
  • Weight gain: Weight gain is a common worry associated with any new supplement or nutritional aid. With creatine, some people may experience an initial increase in weight due to water retention in the muscles. However, this weight gain is temporary, primarily due to increased water content rather than fat gain.
  • Kidney and liver function: Although there’s been some concern about potential harm to kidney and liver function from creatine supplementation, current research shows that short-term use of creatine doesn’t cause any significant damage to these organs in healthy individuals. “Individuals with pre-existing kidney or liver conditions should consult a healthcare professional before using creatine,” said Hamlin.
  • Dehydration: Creatine doesn’t cause dehydration, but it can affect fluid balance in the body, which can be dangerous, especially for people with diabetes

Whether you decide to take creatine is up to you, but it’s always a good idea to talk to your doctor before starting any new supplement or workout routine.

To help you make an informed decision, here are some people who may benefit from creatine supplementation:

  • Vegetarians and vegans: Creatine is naturally found in animal products, so vegetarians and vegans may benefit from supplementing their diet with creatine to maintain adequate levels.
  • Physically active people: Creatine can help improve athletic performance, especially in short-term, high-intensity activities.
  • People with certain medical conditions: Creatine supplements may benefit people with certain conditions such as muscular dystrophy, Parkinson’s disease, and Huntington’s disease.

Here are some people who should proceed with caution when taking creatine:

  • People with kidney or liver problems: Creatine supplements may put extra strain on these organs.
  • People with diabetes: Creatine can affect blood sugar levels and may also cause an electrolyte imbalance.
  • People taking certain medications: Creatine supplements can interact with certain medications, such as diuretics (as it may increase the risk of kidney damage or dehydration).

Frequently asked questions

best creatine supplements for men in 2020
Alonso Reyes / Unsplash

Does creatine interact with any other supplements or medications?

Overall, creatine is considered one of the safer supplements you can take. However, it may adversely interact with certain medications. A few of these include NSAIDs, diuretics, probenecid, Tagamet, and medications that support the kidneys. Also, caffeine may reduce creatine’s effectiveness, so consider reducing or eliminating caffeine from your daily routine.

What forms of creatine are there?

Fun fact: There are six different types of creatine you can choose from. These include creatine monohydrate, creatine ethyl ester, creatine hydrochloride, buffered creatine, liquid creatine, and creatine magnesium chelate. This may be overwhelming, but the most common type people use to see results is creatine monohydrate, so that is a great place to start. This well-studied creatine form is affordable and easy to take, so it can be a good daily supplement for many people.

The bottom line

Creatine powder with some on table with a spoon
Aleksander Saks / Unsplash

Creatine isn’t a magic pill, but it can help you get the most out of your workouts and reach your fitness goals. That said, creatine may cause some side effects for some people, especially those with diabetes or kidney problems. These side effects are temporary for most healthy individuals and can be managed with proper hydration and dosage.

If you’re considering taking creatine, read up on the benefits and risks and schedule a call with your doctor to discuss whether it’s right for you.

Tabitha Britt
Tabitha Britt is a freelance writer, editor, SEO & content strategist.
What does grip strength tell you about your risk of chronic disease? New studies
shirtless man in gym doing close grip lat pulldown with cable machine

We often hear fitness buffs discussing bulging biceps, toned triceps, and how to build tree trunk legs on leg day. What’s equally important but not as widely discussed is grip strength. You use your gripping muscles in your hands and wrists every day when you’re doing your functional tasks and when you’re in the gym powering through a deadlift or doing HIIT battle rope exercises like slams, waves, or pulls. Let’s explore the latest research and the importance of grip strength.

Correlations and vital signs

Read more
Can you run the Great Wall of China? The brutal marathon with entrancing scenery
Runners must tackle 5,164 steps and varying terrain to cross the finish line.
the Great wall of China

I enjoy zooming through new places or my favorite trails, draped with those tall, emerald-green oak trees. Running a marathon or simply jogging through your neighborhood is an accomplishment, and for many of us, we get a runner’s high and a rush of feel-good endorphins to go along with it. 

Some marathons are more grueling than others, depending on various factors like the terrain and the weather. Recently, one of the more challenging marathons took the spotlight. While it’s certainly grueling, you’ll also see entrancing scenery and one of the most captivating, historic, cultural landmarks in the world, the Great Wall of China. 

Read more
Here’s why Arnie and other champions used this bodybuilding hack 50 years ago
There's good reason why Arnie and other champion weightlifters use this muscle-building method.
Man laying on workout bench doing chest presses with dumbbells

Today, we see numerous fitness influencers sharing their tips and tricks for getting in shape, building serious muscle, or achieving specific goals. Bodybuilding champions like Arnold Schwarzenegger have been inspiring us for decades and sharing tips on how to train smart rather than just training hard and reaching burnout. 

As Arnie recently shared in his Pump Club newsletter, along with his 30-minute dumbbell workout, the goal is to train with intention and include sufficient rest intervals rather than rushing through reps, which can compromise safety and form and push you closer to fatigue and burnout. Recently, a bodybuilding hack that was extremely popular in the 1970s is coming back. Let’s explore time under tension or TUT.

Read more