Health food shops sell foods and products chosen for particular dietary needs, nutritional preferences or lifestyle choices. Their ranges commonly include wholegrains, pulses, nuts and seeds, dried fruit, natural sweeteners, plant-based foods and alternatives to dairy products. Many also stock organic, gluten-free, wheat-free, vegetarian and vegan groceries, although the selection varies between shops. Some carry chilled or frozen foods, snacks, drinks and ingredients for home cooking. Customers may also find vitamins, minerals, herbal remedies, protein powders and other food supplements, as well as natural skincare and toiletries. Staff can often provide information about ingredients, allergens and product use, but supplements are not a substitute for a balanced diet or medical treatment. People taking medicines, managing a health condition, pregnant or breastfeeding may need advice from a qualified health professional before using them.