8. Romaine lettuce
Another excellent source of Vitamin C is romaine lettuce that provides more than your daily requirement in one head. Romaine lettuce is also high in Vitamins A and K, omega 3 fats, though it’s technically fat-free. You can add it to your smoothies, salads, and it’s a great alternative for wrapping your lunch sandwich. You can also make a Romaine lettuce juice.