The Induction phase is the first, and most restrictive, phase of the Atkins Nutritional Approach. It is intended to cause the body to quickly enter a state of ketosis. Carbohydrate intake is limited to 20 net grams per day. The allowed foods include a liberal amount of most meats, up to 4 ounces of aged, hard or soft cheeses, three tablespoons of heavy cream, two cups of salad vegetables, one cup of other low glycemic low carb vegetables. Caffeine and alcoholic beverages are not allowed.
The Induction Phase is usually when many see the most significant weight loss - reports of losses up to six or eight pounds (3 or 4 kg) per week are not uncommon.
Atkins suggests the use of Ketostix, small chemically reactive strips used by diabetics. These let the dieter monitor when they enter the ketosis, or fat burning, phase.
However, simply watching your weight will work. Losing 1-2 pounds a day means you are in ketosis