What Creatine Does After 50 (Even If You Never Exercise)

Summary

Dr. Sean Hashmi discusses research suggesting creatine may support strength and muscle—even among adults who don’t exercise. He also explains that creatine can affect routine kidney blood-test results.

Key findings discussed

• In a Texas A&M study of adults aged 45–65 who weren’t exercising, participants taking 10 g of creatine daily reportedly improved leg strength by about 18% over 12 weeks. This was similar to the improvement in the placebo group, which exercised three times a week. Creatine users who remained inactive also gained some muscle and improved their bench-press strength.
• Hashmi describes creatine as a kind of “backup battery” for short bursts of muscular effort, such as standing from a chair or climbing stairs. He emphasizes that strength—not just muscle size—is important for maintaining independence with age.
• Research reviewed in the video suggests creatine may benefit memory more in older adults than in younger people. Hashmi also mentions a small pilot study involving people with Alzheimer’s disease and studies involving vegetarians.
• Creatine may help muscles take up blood sugar. The video cites reported improvements in A1C among people taking creatine, including alongside exercise. These are presented as research findings, not as a replacement for diabetes care.
• For people losing weight, including those using GLP-1 medications, Hashmi recommends taking steps to preserve muscle. He suggests plant-based protein foods such as beans, lentils, tofu, and tempeh, along with resistance exercise. A study discussed in the video found that people who exercised, reduced calories, and took creatine gained more lean mass than those taking a placebo.

Practical strategies and cautions

• Creatine choice and dose: The presenter recommends plain creatine monohydrate. He describes the Texas A&M study dose as 5 g in the morning and 5 g in the evening. For people strength training, he says 3–5 g daily may be sufficient. Splitting a 10 g daily dose may help reduce stomach upset.
• How to take it: Mixing creatine into warm water, warm soy milk, or oatmeal may help it dissolve. Hashmi cautions that some creatine gummies may not contain the amount stated on the label and suggests looking for independent testing.
• Plant-based diets: Meat and fish are the main dietary sources of creatine, so vegetarians and vegans may start with lower muscle stores. Creatine monohydrate powder is described as vegan; check capsules for gelatin if avoiding animal products.
• Kidney tests: Creatine can raise blood creatinine, which may make a creatinine-based eGFR calculation look lower even if kidney function has not worsened. Hashmi recommends telling the clinician ordering blood tests that you take creatine and discussing a cystatin C test if kidney results are concerning. Anyone with kidney disease or on dialysis should consult their medical team rather than rely on the video’s general guidance.
• Expectations: The presenter says the scale may rise by a pound or two initially because of water stored in muscles. He suggests allowing at least 12 weeks to assess the effects.

Beginner exercises

To build on creatine’s potential strength benefits, Hashmi suggests doing these exercises three times a week:

1. Stand up from a chair 10 times without using your hands.
2. Do push-ups against a kitchen counter.
3. Hold a tabletop for balance and rise onto your tiptoes.

Presenters and sources mentioned

Presenter: Dr. Sean Hashmi, identified in the video as a board-certified nephrologist and lifestyle and obesity medicine specialist.

Sources discussed: A Texas A&M study of adults who did not exercise; studies on creatine, memory, Alzheimer’s disease, diabetes, weight loss, and dialysis; a 2026 review of 36 studies on GLP-1 medications and lean-tissue loss; a 2026 review of 20 randomized trials on kidney markers; a two-year Parkinson’s disease study; a 2009 rugby-player study; a 2025 study measuring hair outcomes; and testing of creatine gummies by a supplement company. The subtitles do not provide authors or full citations for these studies.