It's probably best to drink it slightly warm, as cold water first thing in the morning is a shock to the system and can create gas and bloating. Wait at least half an hour until you eat breakfast or until you brush your teeth.

Breakfast
5 each of blackberries, blueberries, raspberries, strawberries and cherries
1 apple
1 pear
Organic live yoghurt
Handful of raw almonds
Chop up all the fruit, mix with the yoghurt and sprinkle with almonds.

Mid-morning snack
Drink your second glass of lemonade. Ten minutes later have a banana, plus a handful of sunflower or pumpkin seeds.

Lunch
As much mixed green bean or lentil salad as you like, dressed with lemon juice, balsamic vinegar and extra virgin olive oil. You can eat any kinds of beans and lentils, including red kidney, haricot, cannellini, butter, black eye and pinto beans and red, green and brown lentils.

Mid-afternoon snack
Drink your third glass of lemonade, then 10 minutes later have cucumber, radish and celery crudites, or a handful of raw unsalted nuts and dried fruit.

Dinner
Grilled fish with steamed vegetables (make sure you include onions). You can eat any vegetables you like, fresh or frozen, such as carrots, turnip, swede, sprouts, cabbage, peppers, mushrooms, sweetcorn, leeks, courgettes, broccoli, cauliflower, tomatoes, cucumber, spring onions.

You can also choose any of the following fresh fish: cod, plaice, mackerel, salmon, trout, haddock, tuna, prawns, Dover sole, red mullet, halibut, lemon sole. Make sure you sprinkle your fish with lemon juice before eating. (If you don't eat fish, substitute with soya beans or tofu and avocado.)
OR
Stir-fry a selection of vegetables such as bok choi, spring onions, mushrooms, bamboo shoots and bean sprouts in a little extra virgin olive oil with garlic, lemon juice, ginger and tofu pieces.

About two hours before bed
Have your glass of lemonade, this time with warm or hot water.

Just before you go to bed
Have a relaxing warm bath with aromatherapy oils. If you feel hungry after your bath try nibbling on some celery stalks as they are loaded with magnesium, which is a calming nutrient.

Try to be in bed before 10pm if you can. A good night's sleep is important for weight loss because lack of sleep disrupts hormones, triggering metabolic changes that mean you don't process food so well.

There may also be a link between lack of sleep and increased appetite, so in the weeks and months ahead aim for quality sleep every night; between six and eight hours a night is considered optimum.

The Lemon Juice Diet by Theresa Cheung is available from Ebury Press.

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Your Lemon Juice Diet 24-hour Mini Detox