青菜

A quality greens powder is evaluated by its ingredient list. Look for products that list specific ingredients and their individual amounts rather than proprietary blends where amounts are not disclosed. Key ingredients to look for: spirulina and chlorella (protein, chlorophyll, B vitamins), wheatgrass and barley grass (antioxidants, minerals), prebiotic fiber, and digestive enzymes. Greens powders are most valuable as a nutritional safety net on days when vegetable intake is lower than ideal.