According to Dr Ross Perry, the supplement “should be taken in the morning,” he told Express UK.
Dr Perry explained, “This is because if we’re getting Vitamin D naturally from the sun, we are synthesizing it during the day so it’s better to be taken in the morning.”
“The main source of Vitamin D is the sun. Vitamin D deficiency has been linked to lack of energy and fatigue, so it’s only natural that by getting your daily dose via the sun’s natural exposure it will boost energy levels,” he added.