GM Diet Tips: Before, During and After

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GM diet tips: before, during and after

Practical advice to prepare for the week, get through it comfortably and finish without bouncing back.

Updated 27 October 2026Not yet reviewed by a registered dietitianMedical disclaimer

Before you start

  • Check whether the plan is right for you. If you have a health condition or take medication, ask your doctor first.
  • Pick a week without exams, travel, celebrations or hard physical work.
  • Prepare food in advance with the grocery list.

During the week

  • Drink water regularly. Thirst is easily confused with hunger.
  • Eat every few hours. Long gaps make it harder to stay on plan.
  • Keep wonder soup ready as a filling fallback.
  • Sleep well and keep activity gentle, especially on days 1 to 4.
  • Avoid processed and packaged foods, which are high in salt, sugar and poor-quality fats.
  • Weigh yourself no more than once a day, at the same time, if you weigh yourself at all.

When to stop

Stop the plan and eat a normal meal if you feel faint, dizzy, shaky, confused, very weak, or have a racing heart. Seek medical help if symptoms do not settle.

After the week

  • Return to regular meals gradually. Build each meal around vegetables, a protein food and a portion of whole grains.
  • Expect some weight to return in the first days. That is water, not fat, and it is normal.
  • If you want to keep losing weight, aim for steady changes you can keep. A loss of 5 to 10% of body weight that you maintain brings real health benefits.

Frequently asked questions

How do I prepare for the GM diet?

Check the plan is right for you, choose a quiet week, shop ahead and make a pot of wonder soup the day before you start.

When should I stop the GM diet?

Stop and eat a normal meal if you feel faint, dizzy, shaky, confused, very weak or have a racing heart. Seek medical help if symptoms do not settle.

How can I avoid regaining weight afterwards?

Return to balanced meals gradually and aim for steady changes you can keep, such as more vegetables, regular protein and fewer sugary or processed foods.