Keto Complex NZ If a low carbohydrate diet could reverse type 2 diabetes, you would think experts would be rushing to recommend it. So why the caution? JOHN McCRONE reports.Something is going on. Lined up in the cabinet at the Kefi Cafe in Taupō are a bunch of keto options. Keto "fat bomb" cream slice. Keto bacon and egg sandwich. Special of the day, vegan keto stuffed tomatoes and pumpkin – just 1.5 grams of carbs.