You wake up with a cramp in your calf.
Your legs feel heavy after walking. Climbing stairs hurts more than it used to.
And you wonder:
Is this just aging? Or is my body trying to tell me something?
While joint wear, nerve issues, or injury can cause leg and bone discomfort, nutrient deficiencies are often overlooked culprits — especially in older adults, those with limited sun exposure, or people following restrictive diets.