Moringa contains proteins, vitamins, and minerals. It's commonly used in Africa and India as a treatment to restore nourishment where vitamins and minerals are sorely lacking. The leaves, when dried and powdered, can be used as a condiment or added to your daily juice/smoothie. 
My nan once snapped off the sharp blade of an aloe vera plant and told me the juice would nourish my skin and clear up spots. Since this same woman taught me that boston bun is the best frigging sweet thing on earth and buying fish and chips then wrapping it in your own newspaper like you prepared it yourself, I totally trusted her. Not only was she correct that aloe vera is nourishing and cleansing when applied to the skin, it is also a great tonic to drink. Hugely popular in herbal medicines, it contains many vitamins including A, C, E, folic acid, choline, B1, B2, B3 (niacin), B6. Aloe Vera is also one of the few plants that contains vitamin B12. Some of the 20 minerals found in Aloe vera include: calcium, magnesium, zinc, chromium, selenium, sodium, iron, potassium, copper, and manganese.