According to the National Institutes of Health (NIH), low potassium can increase your risk for hypertension, stroke, osteoporosis, and type 2 diabetes. But before your risks for these conditions start to rise, it's possible to recognize the signs of potassium deficiency and reverse it before it becomes an issue. “One reason a person would be low in potassium is if they’re simply not getting enough from the diet,” Hultin explained. Here are signs of a potassium deficiency you should be aware of—and exactly how you can get enough of it in your diet. In fact, more than 50% of people with severe potassium deficiency might also be deficient in magnesium, says the NIH.