On the other hand, if you're trying to run towards health, well then my money's on your feet.
Exercise is, second only perhaps to not smoking, the most important health behaviour anyone can cultivate.
Whether you're running to reduce the risk or burden of most chronic diseases, or to preserve and improve your functional independence, or to reduce pain, live longer, improve sleep, bolster mood, gain strength, lengthen endurance etc., increasing and sustaining regular exercise, regardless of weight and independently of diet, is incredibly powerful.
And I'm not aware of there being any credible voices suggesting otherwise.