GM Diet MagicPlain-language guides to the 7-day GM diet, with honest answers about what it can and cannot do.
Food and tools
General information only, not medical advice. Talk to a doctor or registered dietitian before starting any weight-loss plan. Medical disclaimer.
What can you eat on day 1?
On day 1 of the GM diet you eat only fruit, in any amount, plus water. Bananas are not allowed, and most versions also leave out mangoes, grapes and litchis because they are higher in sugar. Watermelon and other melons are encouraged because they are filling and mostly water.
Eat
- Watermelon, muskmelon and other melons
- Apples, pears and guava
- Oranges, sweet lime (mosambi) and grapefruit
- Strawberries, papaya and pineapple
- Water, herbal tea and black coffee without sugar (see FAQs)
Avoid
- Bananas (saved for day 4)
- Mangoes, grapes, litchis and chikoo
- Fruit juice, dried fruit and canned fruit in syrup
- Any vegetables, grains, dairy or protein
Sample day 1 menu
- BreakfastHalf a bowl of watermelon and an apple
- Mid-morningAn orange or a cup of papaya
- LunchBowl of mixed melon, guava and strawberries
- AfternoonA pear
- DinnerBowl of muskmelon and pineapple
Portions are flexible except where noted. GM wonder soup can be added at any meal.
Tips for day 1
- Eat every few hours so you do not get very hungry by evening.
- Keep cut fruit ready in the fridge; it is easier to stay on plan.
- Fruit alone is low in protein and fat, so many people feel tired by the afternoon. Keep the day quiet and skip hard workouts.
Before you start
The GM diet is very low in calories and protein on several days, and no clinical study has tested it. Do not follow it if you are pregnant, breastfeeding, under 18, have diabetes, kidney disease, heart disease, low blood pressure or a history of disordered eating, or take regular medication, unless a doctor has agreed. Stop and eat normally if you feel faint, dizzy, confused or unwell.
Frequently asked questions
Can I eat bananas on day 1 of the GM diet?
No. Bananas are saved for day 4. Most versions also leave out mangoes, grapes and litchis on day 1 because they are higher in sugar.
How much fruit can I eat on day 1?
Most versions do not limit the amount. Eat every few hours so you do not get very hungry, and favour water-rich fruit such as melons, oranges and papaya.
Can I drink fruit juice on day 1?
No. Eat whole fruit instead. Juice is reserved for day 7, and even then it should be unsweetened.