A single cup of lettuce provides up to 47% of daily vitamin K needs and 23% of vitamin A requirements. Lettuce contains antioxidants that may protect against eye disease, heart disease and neurodegenerative conditions. The vegetable is 94-95% water, making it a hydrating, low-calorie food with fewer than 10 calories per cup. Vitamin K in lettuce supports bone density and blood clotting, with some varieties offering half the daily value in one serving. Research links raw vegetable consumption, including lettuce, to improved mental health outcomes and depression protection. A nutrient powerhouse hidden in plain sight For centuries, lettuce has sat…

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