Did You Know 🤔 Is it vitamin D deficiency that causes low cortisol, or is it the cortisol that causes a vitamin D deficiency? Unfortunately, both can be true. This means that the more stress you go through, the more you could be deficient in vitamin D. But then, a vitamin D deficiency can make you more stressed, causing a cortisol problem. One of the most effective ways to support healthy vitamin D levels, therefore breaking this cycle of stress, is through regular sun exposure, which enables t