One classic use is in soaps. Hemp oil is also used in paints and lubricants, and as a body care product. It may be rubbed directly onto the skin to treat cracked, dry skin, or it can be blended into body oils, body creams, and other personal care products. Some people also use it as a dietary supplement, taking advantage of the high concentrations of essential fatty acids in unrefined hemp oil and using the oil as a dressing or garnish to improve nutrition.
The oil contained in the hemp seed is 75-80% polyunsaturated fatty acids (the good fats) and only 9-11% of the less desired saturated fatty acids. Hemp seed oil is reputed to be the most unsaturated oil derived from the plant kingdom. The essential fatty acids contained in hemp seed oil are required in our diet more than any other vitamin, yet our bodies do not naturally produce them. They must be obtained from external sources in the food we eat. Essential fatty acids are involved with producing life's energy throughout the human body and without them, life is not possible. In general, North Americans have a high dietary deficiency in essential fatty acids due to our high intake of animal fats versus plant fats, caused by our high consumption of processed foods and meats versus natural organic foods.

Cannabis oil also posses antioxidant properties. This property makes cannabis oil useful in the treatment and prevention of wide variety of diseases, such as ischemic, age-related inflammatory and autoimmune diseases. Cannabis oil may also have a use as neuroprotectants for such things like limiting neurological damage following a stroke or head trauma. It can also be used in the treatment of neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and HIV dementia.  
There are other types of omega-3 fatty acids, but the other omega-3s are typically found in marine animals and plants or fortified products, like eggs. The Dietary Guidelines for Americans currently recommend the consumption of 1.1 to 1.6 grams of ALA each day as part of a healthy diet. However, a 2019 study in the Proceedings of Nutrition Society Journal has said that this value may go up to a total of 2 grams of ALA per day. hemp oil
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