Sip Kitchen



1. How long is the LFD?

Sip Kitchen’s LFD is 5 days and then 1 self-administered refeeding day.

2. How frequently should I do the LFD? 

This really depends on different factors such as your age, health status, and lifestyle, and may need to be discussed with your healthcare practitioner. You can find our general recommendations here

The recommendations from Dr. Valter Longo, director of the Longevity Institute are:

  • It should be limited to no more than once per month to avoid nutrient deficiencies
  • Once a month for those who are obese or overweight with at least two risk factors: diabetes, cardiovascular disease, cancer or neurodegenerative disease
  • Once every three months for those who are of an average weight with at least one risk factor: diabetes, cardiovascular disease, cancer or neurodegenerative disease
  • Once every four months for healthy people with a normal diet who are not physically active
  • Once every six months for those who are healthy, physically active, are a healthy weight, and eat a Mediterranean-based diet. 

3. Can I exercise while doing Sip Kitchen’s LFD?

It is recommended that you only do light exercise while doing the LFD. This includes walking, stretching, and yoga. Avoid high-intensity exercise.

4. What foods will I be eating during the five-day fast?

The menu is based on organic, seasonal produce so is subject to change depending on what ingredients are available. You will have a variety of warm vegetable dishes, soups, snacks such as olives, breakfast muffins, breakfast bars, and sugar-free chocolate mousse pots or fudge.

Additionally, the LFD is paleo, gluten, dairy & sugar-free.

(Add link to menu – still to come)

5. Can I eat food other than the food in my meal plan while doing Sip Kitchen’s LFD?

No, sorry! If you are really struggling then you can add a small amount of fat e.g. olive oil (so the carb and protein quantities are not impacted). Bear in mind that the LFD has been created within certain macro and micronutrient parameters and by adding just 1 tsp of olive oil you are adding 40 calories to your daily total. If you get hungry - drink more water and add a pinch of mineral salt to each glass for the next 4 glasses and see how you feel.

You can also boost the seasoning levels of the meals to your taste liking – more lemon juice on the salad, even more herbs like parsley or coriander for example, but that’s it!

6. Can I drink coffee and tea while doing the LFD?

Yes, but you must limit it to two black coffees or teas per day (no sugar, milk, cream, MCT oil etc)

You can drink as much herbal tea as you desire. It is recommended that you drink herbal tea to help to the detoxification process, decrease hunger, and stay hydrated.

7. Can I still drink alcohol while doing the LFD?

No. Alcohol contains a lot of calories which would exceed your daily calorie limit.

8. Can I have zero-calorie soda while doing the LFD?


9. Are there any immediate benefits of doing the LFD once?

The research shows most of the benefits come if a five-day fasting-mimicking diet is done in cycles a few times per year, however, you might notice weight loss after completing the LFD just once.

10. Will I lose weight after doing Sip Kitchen’s LFD?

Weight-loss results while doing the LFD vary from person to person. Some individuals lose 5-6kg in 5 days whereas some lose less than 1 kg. Normally, the more weight you have to lose, the more weight that is lost.

11. Can I continue my medication while completing the fast?

You may continue your birth control and/or hormone replacement regimen or any other medication you are currently on during the LFD. Should another physician prescribe you a medication while on this program please consult with them about what you are doing beforehand.

12. Can I still take my supplements while on the LFD?

You can take supplements that are free from animal products, amino acids (eg collagen), sugar or any other calories. There are some supplements that could help you during your fast but these are not compulsory to complete the LFD. These can be found in your Info Pack when you purchase the LFD

13. Can I take painkillers while doing the LFD?

If you really feel as though you need to.

14. What is working like while doing the LFD?

Some find it difficult to concentrate and feel more fatigued than normal, whereas some are more focussed and energised than normal. It varies from person to person. We recommend doing the LFD when you have a slower week at work for your first round.

15. Can I order extra Sip Kitchen food?

Yes, you can order Sip Kitchen’s Day-Six Refeed Meals here. There is a small selection of the LFD soups and breakfast options that may also be good to support refeed if you don’t choose to purchase the Day-Six Refeed Meal Plan. The soups can be found under Meals and Soups and the Breakfast Bars and Breakfast Muffins can be found under Baked Goods.

Longevity Fasting Diet by Sip Kitchen

Plant-Based, Paleo, Gluten-Free, Dairy-Free, Sugar-Free, Grain-Free, Organic, Spray-Free, All-Natural