Frequently Asked Questions - The Fast 800 (2024)

FAQs

How much weight can you lose in 12 weeks on Fast 800? ›

It's important to remember that individual results can vary significantly, and it's always crucial to **consult a healthcare professional before starting any new diet, especially one as restrictive as the Fast 800**. * **Studies have shown an average weight loss of 10.5kg (23.1 lbs) after 12 weeks on the Fast 800**.

Cut right down on sugar

Reduce your intake of sugar, sugary treats, drinks and desserts. Instead, if you are looking for something sweet, try eating berries, a square of dark chocolate or The Fast 800 shakes.

This initial stage is designed to switch the body into a mild ketosis. The second stage of the plan involves intermittent fasting, restricting calories to 800 a day for two days of the week, then eating a healthy, low-carb, Mediterranean diet for the remaining five.

Very Low-Calorie Diet (VLCD)

On a VLCD, you may have as few as 800 calories a day and may lose up to 3 to 5 pounds (1.5 to 2 kg) week. Most VLCDs use meal replacements, such as formulas, soups, shakes, and bars instead of regular meals. This helps ensure that you get all of the nutrients you need each day.

You've likely hit a plateau because you have been consuming so little for so long. Most of losing weight is what you eat, but you should pair it with exercise. Pilates, weightlifting, swimming, etc.

The Very Fast 800, which is 800 calories per day for up to 12 weeks – this approach is for those that are motivated and want to lose a lot of weight rapidly.

Dr Mosley, who created the Fast 800 diet and popularised the 5:2 diet, claims bananas aren't as beneficial as you think when it comes to weight loss. He acknowledges you should eat fruit and veg, but urges dieters not to eat more than seven portions in a day.

Dr Mosley said his best four breakfasts were porridge, overnight oats, eggs - especially omelettes and kippers.

Fruits, vegetables, and whole grains are high in fiber, so they can help keep a person feeling full and satisfied. Healthy fats and proteins can also contribute to satiety. Beverages can play a role in satiety for those following the 16:8 intermittent fasting diet.

Foods to eat on fasting days

If you eat simple carbohydrates, like white pasta, white bread, chips and chocolate, that spike blood sugar quickly, your pancreas will release insulin attempting to mitigate hazardous changes in blood sugars.

Can you have lemon water on fast 800? ›

Tip: Add lemon, lime or ginger to your water if you want to add a little more flavour. Black coffee and tea – For fasting, black tea and coffee are great as they have virtually no calories. If you are a coffee lover, be mindful of your caffeine intake – we recommend no more than two cups of coffee a day.

What foods to eat on The Fast 800 Keto Diet. If you've read Dr Mosley's book, The Fast 800 Keto, you'll know that he recommends following the rule of 50:50. Keeping carbohydrates under 50g per day and ensuring protein remains above 50g.

Decreased Muscle Mass. Your body composition may be another reason why you are still gaining weight while in a calorie deficit. If you have a higher body fat percentage and lower muscle mass, then you are probably burning fewer calories than if you had more muscle mass.

So what is the magic number to lose weight and keep it off? According to the Centers for Disease Control and Prevention (CDC) , it's 1 to 2 pounds per week. That means, on average, that aiming for 4 to 8 pounds of weight loss per month is a healthy goal.

However, The Very Fast 800 isn't right for everyone, and those who can undertake it must do so for a maximum of 12 weeks. Here's why: Very low-calorie diets (VLCDs) are typically only recommended for people with obesity-related health risks, where losing weight quickly could significantly benefit their health.

One study reports that alternate day fasting is effective for weight loss and heart health in healthy and overweight adults. The researchers found that the 32 participants lost an average of 5.2 kilograms (kg), or just over 11 pounds (lb), over a 12-week period.

An overweight, out-of-shape person who starts a healthy weight-loss diet and exercise regimen may get a bigger bump that first week, maybe up to 6 pounds—but that's fleeting. Even that person will quickly revert to 1-2 pounds per week. So, a realistic healthy weight loss for 12 weeks would be 22-24 pounds.