Why I never think about creatine on its own
You just made a great decision for your muscles. When women ask me what I consider foundational in midlife, creatine is at the top of my list, and vitamin D sits right beside it.
Here's what I've learned after years of working with women in midlife: many of us don't make enough vitamin D from the sun alone, especially in winter or in northern states, and most of us spend the majority of our days indoors. The only way to know where you stand is to test.
Strength in midlife is about more than muscle. It's muscle and bone together, and vitamin D is part of how your body uses calcium for bone. That's why D3 is the first thing I'd add next to your creatine.