She lost five pounds! In just a few short days! She buys more packaged food Number One Keto and After a week she's lost another two or three pounds! Then week 5 comes around and things change for the worse. This time when she gets on the scale... She didn't loss any weight! No weight loss from last week to this! She starts to panic, but the Dietitian is clever. "You've just hit the plateau" he says. We'll just cut you back to 900 kilo-calories. It just means smaller parcels of food and smaller shakes.