I'm on ketogenic diet for a year and i started seeing positive changes almost immediately. Not just on my appearance (I lost 23 pounds in 4 months), but on my mood and energy level too. I got compliments all the time from my friends and family. Guys started to notice me too, not just my girlfriends when we are going out. If you don't know how to start your diet, or you wanna spice up your current one; i highly recommend my favorite Ketosis Cookbook, Which is reviewed here: http://tastyketo.com/keto-cookbook/ . Over 370 low carb recipes with nutritional informations, macros, meal plans and shopping lists. It made my diet a lot easier.