What Is The Zone Diet? (3) The Zone Diet website has some at-home kits available for purchase so you can test your levels. It is a simple method of following the zone diet, the Hand-Eye method is symbolic to remind you always of what your diet plan is without checking a journal/diary. | Learn What It Means To Be In The Zone Omega-3 fat is anti-inflammatory, so The Zone Diet recommendation is to stay between 1.5 and three. Low values mean that you have more omega-3 in your blood. Studies link higher levels of AA/EPA to chronic diseases, obesity, and depression. The Zone Diet instructs its followers to stick to eating a specific ratio of 40% carbs, 30% protein and 30% fat.