Nuts, seeds, vegetable oils and fish are rich in unsaturated fats. Common sources are avocados, olive oil, salmon, soybean oil, peanut butter, mackerel, flaxseed, sunflower oil and walnuts. More »

Unsaturated refers to a hydrocarbon with at least one double or triple bond. An alkene is a hydrocarbon with at least one double bond and the general formula CnH2n. An alkyne is a hydrocarbon with at least one triple bon... More »

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Unsaturated fats liquefy at room temperature, while saturated fats remain solid. Unsaturated fats have health benefits, such as lowering LDL cholesterol and raising HDL cholesterol. Saturated fats are unhealthy because t... More »

According to LoveToKnow, some of the foods that do not contain carbohydrates include naturally-occurring meats, oils, animal fats and salt. Butter is the only dairy product that does not contain any carbohydrates. More »

Foods low in iron include most fats and oils, soups, candies and dairy products. Citrus fruits are low in iron but contain high level of vitamin C, which increases iron absorption from other food sources. Other low-iron ... More »

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Fats are solid at room temperature and tend to be of animal origin, though some vegetable oils are also solid at room temperature. Oils are liquid at room temperature and tend to be derived from plants, but some oils can... More »

Foods that contain omega-3 fatty acids include some fish, leafy green vegetables, nuts and seeds. Some foods are fortified with omega-3, and many oils used for cooking and salad dressings also contain this healthful nutr... More »

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