Eat your carrots, people. Leafy greens and yellow and red fruits and veggies like bell peppers, tomatoes, mangoes and cantaloupes are rich in vitamin A. A deficiency of this nutrient decreases liquid tear or aqueous fluid production. The medical term for DED is keratoconjunctivitis sicca. That was a mouthful, and if you want to avoid it, you'd best start munching. Vitamins B12 and D are also important, so seek the sun and supplement for B12 if you're vegan.

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