(The seeds won' t make you high, and are treated so that they cannot be grown for other, better-known uses.) Hemp seeds are one of the richest plant sources of omega-3 fats, which make up a healthy brain and nervous system; keep your blood from getting too sticky and clotting too much; and are natural painkillers in conditions such as arthritis because of their anti-inflammatory properties. But the beauty of hemp oil is that it also contains an excellent balance of the impor-tant omega-6 fats. In fact, it is the only common seed oil that meets all your essential fat needs.