Vitamin D Deficiency
One of the supplements I believe most individuals should take is Vitamin D. Not only is it a key player in the way your body handles carbohydrate (has been shown to improve insulin resistance), but it also affects the body's capacity to absorb magnesium and calcium, two critical minerals. Vitamin D deficiency can cause loss in bone density which leads to osteoporosis. It’s also been shown that there are significant links between individuals diagnosed with depression and vitamin D deficiency, likely due to its role in proper brain function.
Unbelievably, almost 50% of people worldwide are lacking this key vitamin!
This is likely due to our current culture of constantly being in-doors, in front of screens, and away from direct sunlight. Many studies recommend 30 minutes of midday sunshine to combat this. Daily supplementation of about 5,000-10,000 IUs is another way to increase vitamin d intake (if you choose the supplement route, I always recommend taking it in the morning, as the body can perceive it as a stimulant, so it’s best to keep it away from bedtime).