14 Subtle Signs of Vitamin and Mineral Deficiencies You Need to Know

9. Recurring Mouth Sores or Cracks

A pesky mouth sore or stubborn crack at the corner of your lips may not just be from spicy foods or a cold wind. Deficiencies in B12, folate, and iron often show up early in the mouth because these nutrients are key for cellular repair and immune support. If mouth sores or dryness keep appearing, try upping your intake of fortified cereals, beans, and lean meats. Of course, oral hygiene and hydration matter too, but when these simple steps aren’t enough, compassionate investigation of your nutrient status can be the game changer.

10. Restless Legs at Night

The urge to move your legs at night, or a crawling discomfort that disturbs your sleep, might have you searching for answers. This subtle, sometimes frustrating feeling is commonly linked to iron and magnesium deficiencies and shows up more often than most people realize—particularly as we get older or during times of stress. Dr. Sethi emphasizes that restlessness isn’t always just about nerves or inactivity; sometimes it’s your body’s gentle nudge for more mineral support. Consider including more leafy greens, beans, and whole grains in your meals, and talk to your provider if the nightly dance continues.