10 Ways Your Body Is Telling You You’re Running Low on Key Vitamins

“A graying part” Possible deficiency: Copper If your part is looking unexpectedly silver lately, check your copper intake. 'Copper plays a role in melanin production, which is what gives hair its colour,' says Olivia Wagner, MS, RDN, LDN, of Aligned Modern Health, a group of functional wellness centres in Chicago.