Induction
The first stage, 'induction', lasts for two weeks to ensure that you are properly in ketosis and that your body has 'switched gear' to its alternative source of energy. This is the most carbohydrate-restricted stage (no more than 15 - 20 g carbohydrate per day). This level allows you a daily amount of around 120 g of salad vegetables and 130g of cooked low carb vegetables such as broccoli, cauliflower, courgettes, green beans etc, plus unsweetened soya milk in weak tea/coffee if you wish.
The rest of your menu is made up of meat, fish, shellfish or poultry and fats (which are completely unrestricted as they are carbohydrate free) and eggs and hard cheeses (which do contain a small amount of carbohydrate, so you need to use these in moderation for this initial stage).
You eat until you're satisfied, and should never be hungry. It is also important to drink a large amount of water, as explained earlier. There is no rule on when to eat, except that you should avoid skipping meals, breakfast in particular.
Induction phase - allowed foods
High protein, carbohydrate free foods
All meats, fish, seafood such as prawns, poultry
Eat as much as you like
Fats & oils
All 100% fats & oils
Eat as much as you like
High protein/fat foods containing small amounts of carbohydrate
Eggs
Hard cheeses
Cream cheese
Double (heavy) cream, crème fraiche etc
Shellfish
Soya milk (unsweetened, 0.6g carb per 100ml or less)
Eat as much as your daily carbohydrate allowance permits
Salads containing small amounts of carbohydrate
Alfalfa sprouts
Celery
Cucumber
Dill, basil, rosemary, thyme, oregano etc
Fennel
Lettuce, romaine, escarole, endive, radicchio etc
Olives
Radishes
Red/green peppers (bell peppers)
Eat as much as your daily carbohydrate allowance permits
Vegetables containing small amounts of carbohydrate
Artichoke hearts
Asparagus
Aubergine (eggplant)
Avocado
Bamboo shoots
Bean sprouts
Beet greens
Broccoli
Brussels sprouts
Cabbage
Cauliflower
Celeriac
Chard
Courgettes
Green/French beans
Kale
Kohlrabi
Leeks
Marrow
Okra
Pumpkin
Rhubarb
Spring onions (scallions)
Spinach
Summer squash
Turnips
Water chestnuts
Eat as much as your daily carbohydrate allowance permits
Other
Herbs and spices - these vary in carbohydrate content but in general the quantities in which they are used are too small to worry too much about counting
Eat as much as your daily carbohydrate allowance permits