Onions are an excellent source of B vitamins, biotin, manganese, potassium and vitamin C. They are a member of the allium family like garlic and so contain health-promoting allyl sulfides.
Tomatoes are high in lycopene, vitamin C, beta-carotene and potassium.
Garlic is an antioxidant-rich food rich in manganese, B vitamins, and allicin.
Spinach is a nutrient-packed green rich in protein, potassium, calcium, iron, and vitamin A.
Cruciferous vegetables like broccoli and cauliflower are a great source of vitamins C and K and contain nutritionally beneficial compounds called glucosinolates.