The first effect of linolenic acid powder, by replenishing the body with sufficient linolenic acid, to get a good function of vision, but also to have a good effect of relieving visual fatigue, so when watching TV, using the computer, look at the phone for too long, appropriate to eat some linolenic acid powder, to relieve visual fatigue, to enhance vision has a good effect. The second effect of linolenic acid, to improve attention, so for some inattentive children, and work for a long time because of fatigue caused by the decline in attention, the appropriate consumption of some linolenic acid powder, through the supplementation of adequate linolenic acid, which can make attention and cognitive function to get a very good improvement.