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. Can fasting be beneficial to include in my cancer treatment protocol?

Research studies and clinical trials have shown that fasting, intermittent fasting, and the Fasting Mimicking protocol can help those with cancer. We have had several cancer patients undertake our LFD prior to chemo treatments and it's one of the reasons we have moved away from set wave dates to 7 day order lead time to ensure getting the LFD underway to suit people's needs. Since we aren’t specialists in this area and are not in a position to provide specific health advice, we have included research studies and practitioners who are versed in this topic below for those who wish to learn more about the effects of fasting on cancer.

How fasting can assist those undergoing chemotherapy treatment:

The research all talks about the same mechanism - that fasting creates a low nutrient and insulin environment which switches normal cells into rest/repair/hibernation mode, with cancer cells responding differently. This makes the chemo less likely to damage normal cells, with the cancer cells remaining exposed to the effects of chemo. If you’d like to learn more about this you can read some of the research linked below and make an appointment with one of our recommended healthcare practitioners.


If you would like to discuss more specific dietary and nutrition advice to complement your cancer treatment with a nutritionist/medical specialist, we recommend making an appointment with one of the healthcare practitioners below. All of these practitioners are versed in fasting and the FMD protocol which our Longevity Fasting Diet is based on.

Dietitian Sylvia North:

Dr Mikki Williden:

Kaytee Boyd:

Tamara O'Dwyer:

Research links:

For research and resources on fasting and cancer, please click here.

15. Is a fasting-mimicking diet good for gut health?

Fasting-mimicking diets can be beneficial for gut health. A study on a four-day fasting-mimicking diet and gut health showed that the FMD reduced intestinal inflammation, increased stem cell number, stimulated protective gut microbiota, and reversed intestinal pathology caused by DSS in those with Inflammatory Bowel Disease.

Read study

16. 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.

17. 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