How to Maintain Muscle Mass: Protein, Strength Training and Creatine

Smiling woman with short silver hair stretching one arm across her chest in a sunny park

How do you maintain muscle mass? Give your muscles a steady reason to stay. Strength train at least two days a week, eat enough protein spread across your meals, and keep moving on the days in between. Creatine is one of the most researched sports supplements, and it works best as an add-on to that routine, not a stand-in for it. A new 12-week study from Texas A&M adds fresh detail, and it also shows where the evidence stops.

Key takeaways

  • Adults need at least two days of muscle-strengthening activity each week, according to the CDC.
  • Active adults generally need 1.4 to 2.0 g of protein per kg of body weight a day (International Society of Sports Nutrition).
  • In the new study, the people who took creatine and followed an exercise program tended to see the largest strength gains.
  • Creatine supports training; it is not a substitute for it.

Why does muscle need maintenance?

Muscle adapts to what you ask of it. When you lift, carry, climb and push, your body keeps the muscle those jobs need. When you sit more and load your muscles less, it slowly lets some of that muscle go, whether the cause is long days at a desk, a busy season or a few weeks of rest after an injury.

Strength training sends your muscles the clearest signal to stay. Food and supplements work best when they support that signal, not when they try to replace it.

How much strength training do you need to maintain muscle?

Adults need at least two days of muscle-strengthening activity each week, according to the CDC. Those sessions should work all the major muscle groups: legs, hips, back, chest, abdomen, shoulders and arms. The same guidelines also call for at least 150 minutes a week of moderate activity, such as brisk walking.

What counts as strength training?

  • Weights: dumbbells, kettlebells or machines at a gym.
  • Resistance bands: rows, presses and leg work you can do at home.
  • Your own body weight: squats to a chair, lunges, push-ups against a counter or wall, and step-ups.
  • Hard physical work: digging in the garden counts when it makes your muscles work hard.

How hard should it feel?

The CDC suggests working each muscle group until it is hard to do another repetition without help, usually 8 to 12 repetitions per set. The exercise group in the new study trained three times a week and added weight every week or two. At home, the same idea works: start light, learn each movement, and add a little challenge over time.

How much protein do you need to maintain muscle?

Protein supplies the building blocks your muscles use to repair and rebuild after training. The Recommended Dietary Allowance (RDA) is 0.8 grams of protein per kilogram of body weight a day, or about 0.36 grams per pound. Harvard Health notes that the RDA covers basic needs: it is a floor, not a daily goal.

For most people who exercise, 1.4 to 2.0 grams of protein per kilogram of body weight a day is enough, according to the International Society of Sports Nutrition. The same group suggests about 20 to 40 grams of protein per meal, spread every three to four hours across the day.

A simple habit is to build each meal around a protein food:

Meal Protein ideas
Breakfast Eggs, Greek yogurt, cottage cheese, or oats cooked with milk
Lunch Chicken, tuna, salmon, tofu, or a bean and lentil soup
Dinner Fish, poultry, lean meat, tempeh, or beans
Snack A glass of milk, edamame, a handful of nuts, or a cheese stick

If you have a medical condition, especially one that affects your kidneys, ask your healthcare provider before you raise your protein intake.

Where does creatine fit?

Creatine is a compound your body makes on its own and also gets from foods such as meat and fish. Your muscles store it and use it to recycle energy during short, hard efforts, like a heavy lift, a sprint or a flight of stairs.

Research has consistently shown that creatine supplements raise the amount of creatine stored in muscle. The International Society of Sports Nutrition links that increase to better performance in high-intensity exercise and, over time, greater training adaptations.

The training part matters. A 2022 review of 35 randomized trials found that creatine's effect on lean body mass showed up when it was combined with resistance training. In the trials that used no exercise program, the review found no clear effect.

What did the new 2026 creatine study find?

In August 2026, researchers at Texas A&M University published a 12-week trial in the Journal of the International Society of Sports Nutrition. Sixty-four healthy adults who were not exercising when the study began completed it.

  • How it was set up: Each person chose either a supervised exercise and diet program or their usual routine. Within each group, people were randomly assigned to creatine or a look-alike placebo, and neither they nor the researchers knew who took which.
  • The amount: The study used 10 g of creatine monohydrate a day.
  • With exercise: In the new study, the people who took creatine and followed an exercise program tended to see the largest strength gains.
  • Without exercise: The people who took creatine without the exercise program also gained lean tissue compared with the placebo groups, and their bench press and leg press strength improved.

What the study does not show

  • It is one small study. Each group had 13 to 20 people, and it ran for 12 weeks.
  • People picked their own group. Creatine versus placebo was assigned at random, but joining the exercise program was each person's choice.
  • The amount was high. The 10 g a day used here is more than the 3 to 5 g a day used in many long-term creatine studies.
  • Earlier results are mixed. The 2022 review above found no clear effect on lean mass from creatine without exercise, so one new study does not settle the question.
  • Industry ties. A creatine maker supplied the creatine and paid for one set of lab tests, and one of the study's authors chairs that company's scientific advisory board. Most of the funding came from a private foundation, and the paper states that the sponsors had no role in collecting, analyzing or interpreting the data.

So the fair reading is this. Creatine can support your training, but it does not replace it. If you change only one thing, make it the strength training.

How do you put it all together?

Here is a simple week that covers the basics:

Habit How often An easy way to start
Strength training At least 2 days a week Squats to a chair, band rows, counter push-ups, and carrying something heavy
Protein Every meal Build the plate around a protein food
Daily movement Most days A brisk walk after a meal
Recovery Between sessions Give each muscle group a rest day between hard sessions, and protect your sleep
Creatine (optional) As the label directs Creatine+: mix one scoop (5 g) with juice or a carbohydrate drink

What should you look for in a creatine supplement?

Creatine monohydrate is the most studied form of creatine. Look for a label that names it plainly and shows the amount per scoop, and look for third-party testing for purity and potency.

Creatine+ is one ingredient: 5 g of micronized creatine monohydrate per scoop. It supports muscle strength and power output, enhances exercise performance, promotes lean muscle growth and aids in muscle recovery.* The label directions are simple: mix one scoop (5 g) with juice or a carbohydrate drink. The 2026 study used more creatine per day than one scoop of Creatine+ provides, so use your label as your guide, not the study.

Every batch of Creatine+ is third-party tested for purity and potency, and it is made in an NSF-certified, GMP-certified, FDA-registered facility in the USA. You can see how we test on our standards page. Creatine+ is part of our Relax & Recover collection.

Before you start, follow the label: consult with a physician prior to use if you have any medical conditions, and do not use if pregnant or lactating. For water weight and other common questions, see Creatine: Myths vs. Facts.

Frequently asked questions about maintaining muscle mass

Can you maintain muscle mass without exercise?

Strength training is the most reliable way to keep muscle. In the 2026 Texas A&M study, inactive adults who took creatine gained some lean tissue and strength without an exercise program, but a 2022 review of 35 trials found no clear lean-mass effect from creatine without exercise. In both, the strongest results came with training.

How many days a week should I strength train to maintain muscle?

The CDC recommends muscle-strengthening activity on at least two days a week, working all the major muscle groups. Two or three full-body sessions a week is a common way to do it.

How much protein do I need to maintain muscle?

The RDA is 0.8 grams per kilogram of body weight a day, which covers basic needs. For people who exercise, the International Society of Sports Nutrition suggests 1.4 to 2.0 grams per kilogram a day. If you have a medical condition, ask your healthcare provider first.

How much creatine is in one scoop of Creatine+?

One scoop of Creatine+ holds 5 g of creatine monohydrate, and each tub holds 60 servings. The label directions say to mix one scoop with juice or a carbohydrate drink. The 2026 study used a higher daily amount, so follow your label rather than the study.

Does creatine make you gain weight?

Creatine draws a small amount of water into your muscle cells, which can show up on the scale in the first weeks. That water sits inside the muscle; it is not fat. In the 2026 study, creatine was well tolerated.

Related reading from our Wellness Hub

Sources

Individual results vary.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.


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