abstract amaranthaceae appearance background color coloration colored colors colour coloured colours cooked cooking diet dietary edible fiber fibre food health healthy iron Popeye-food roughage sloppy soft spinach spinacia-oleracea strength surface surfaced surfaces texture textured textures vegetable vitamins annual-plant baby-spinach bitter flavor flavour fresh herb leaf-vegetable leafy-green-vegetable leaves nutrients nutrition nutritious plant raw salad salad-green salad-vegetable tart vegetables wallpaper