What Deficiency Causes Sugar Cravings?

What Deficiency Causes Sugar Cravings? Magnesium regulates glucose and insulin levels, as well as the neurotransmitter dopamine. A deficiency will cause intense sugar cravings, especially for chocolate. What hormone causes sugar cravings? A 2016 study suggests that changes in levels of hormones estrogen and progesterone cause cravings for high-carb and sweet foods before your period.