14 Subtle Clues You're Low on Key Vitamins and Minerals

11. Mood Swings or Low Moods Without Clear Cause

Feeling more irritable, down, or “not yourself,” even when nothing in your routine has changed? Soft shifts in emotional balance might have roots in nutrition, particularly if vitamin D, B vitamins, or magnesium are on the low side. These nutrients play supportive roles in brain chemistry and can influence how resilient we feel in the face of stress. Everyone experiences ups and downs—but if your usual optimism seems a little sluggish, spending some time in the sun, incorporating more leafy greens, nuts, and whole grains, or even taking calming outdoor walks, may help restore your inner balance. Always remember: emotional health is as vital as physical health, and every feeling is valid. If mood changes linger or interfere with your life, reach out for warm, professional support—you’re never alone in this.

12. Trouble Seeing in Low Light

Noticing that seeing in dim light isn’t as easy as it once was? While night vision can change gradually with age, difficulty adjusting your eyes to darkness may signal low levels of vitamin A. This nutrient supports healthy retinal function and is found in colorful produce like carrots, sweet potatoes, and spinach. Rather than assuming it’s “just age,” pay attention to how quickly your eyes adjust moving from well-lit spaces to shadowy corners. Regularly adding deep orange or dark green veggies to your meals can offer gentle support. If low-light vision becomes more problematic, a healthcare professional can help illuminate the path ahead.