10/07/2026
Think of protein + creatine + electrolytes as three different pieces of the same puzzle:
- Protein = building material. Protein supplies essential amino acids—especially leucine—that stimulate muscle protein synthesis. With age, muscles become somewhat less responsive to protein, a phenomenon called anabolic resistance. That makes adequate protein and resistance exercise increasingly important.
- Creatine = rapid energy reserve. Creatine increases phosphocreatine stores, helping muscles regenerate ATP. A typical evidence-based maintenance amount is 3–5 g/day of creatine monohydrate. In older adults, the strongest evidence for preserving or increasing lean mass and strength is when creatine is combined with resistance training.
- Electrolytes = electrical + fluid support. Sodium, potassium, magnesium and other electrolytes help regulate fluid balance, nerve impulses and muscle contraction. They're particularly useful when you're sweating heavily, exercising in Florida heat, or losing fluids.
Where the magic really happens
Imagine a muscle cell as a little factory.
Protein supplies the raw materials.
Creatine helps supply rapid energy.
Electrolytes help maintain the electrical and fluid environment.
Resistance exercise sends the signal: “We need this muscle—keep it!”
That last piece is critical. Supplements don't replace the stimulus of using the muscle.
For a healthy older woman, a simple routine might be 25–35 g of high-quality protein at a meal, 3–5 g creatine monohydrate daily, adequate fluids, and electrolytes when they're actually needed. Protein needs vary by body size, kidney health, activity level and total diet, so I wouldn't give every woman the exact same protein target.
And there's another fascinating connection for your genomics work.
Creatine metabolism intersects with methylation. Your body can manufacture creatine from amino acids, and an important step uses SAM (S-adenosylmethionine) as a methyl donor. Getting creatine from food or supplementation reduces how much creatine the body needs to synthesize itself. Researchers have therefore investigated whether supplemental creatine can influence methylation demand and homocysteine metabolism.
Protein builds it. Creatine powers it. Electrolytes help it communicate. Movement tells your body to keep it.