Blood pressure and circulation issues are closely tied to potassium levels in the body, since this essential mineral controls water management and fluid balance in the body. Raynaud’s Disease reduces the amount of blood to the extremities, so it’s important to have high potassium levels in the body to minimize the effects. Potassium is also excellent for protecting heart health and minimizing the constriction of blood vessels, so when you do have an episode of Raynaud’s symptoms, they will be less severe.