Lettuce is a good source of hydration and vitamins A, C, K, but one type also has potassium, iron and fiber. ... In 2023, that's spinach, kale, collard and mustard greens.

Kale has essential nutrients, including vitamins A, C, and K. It is also high in calcium, potassium, and magnesium. These ...

Lettuce Smoothie. Kale smoothies are incredibly popular so why not experiment with lettuce? I pureed Romaine with some spinach, apple and a frozen banana to make these vibrant green drinks.

Here's what kale is, why it's so good for you and why some people should still avoid overconsumption. What is kale? Belonging to the same Brassica cruciferous vegetable family as cabbage ...