
18. You are experiencing poor night vision.
If your diet is poor, you could be experiencing some vision issues. Low intakes of vitamin A are linked to night blindness, where people experience a reduction in the ability to see in low light or darkness (via Healthline). Vitamin A is responsible for producing rhodopsin, the pigment of the retina that assists vision in the nighttime hours. If you leave this condition untreated, the problem can progress and cause xerophthalmia, damaging the cornea and leading to blindness.
This deficiency is rare in developed countries. If you suspect that you are not getting enough vitamin A, you may want to incorporate more organ meats, dairy, eggs, fish, yellow and orange vegetables, and dark leafy greens. It is important to note that you should avoid taking vitamin A supplements. When consumed in excess, vitamin A can accumulate in the body’s fat stores and then become toxic. Some vitamin A toxicity symptoms include nausea, skin irritation, headaches, and joint and bone pain. In the worst cases, it could even cause death (via Healthline).