
The GAPS diet is a restrictive protocol that requires the elimination of many nutritious foods for long periods. The diet was designed by Dr. Natasha Campbell-McBride to treat her son's autism, based on the belief that poor nutrition and a 'leaky gut' are responsible for psychological, neurological, and behavioral issues. The diet has six stages, with the first being the most intense and potentially lasting from three weeks to a year. During this time, people may experience a ''die-off' period, where symptoms get worse and the body releases toxins into the bloodstream. This period can last from three to ten days and may include flu-like symptoms, nausea, fatigue, and brain fog.
| Characteristics | Values |
|---|---|
| Duration of the GAPS diet | 1.5–2 years |
| Duration of the introduction phase | 3 weeks to 1 year |
| Duration of the reintroduction phase | Several months |
| Die-off symptoms | Diarrhea, fatigue, nausea, flu-like symptoms, skin conditions, fever, sore throat, constipation, brain fog, mental fuzziness, increased toxins in the body |
| Die-off period | 3 to 10 days |
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What You'll Learn

The GAPS diet is a restrictive protocol that cuts out many foods
The GAPS diet is a restrictive protocol that cuts out many nutritious foods for long periods of time. It is based on the idea that "leaky gut syndrome" can cause a range of physical and mental health issues, and that eliminating certain foods can help treat these conditions. The diet involves cutting out all grains, sugars, starchy vegetables, refined carbohydrates, and processed foods. This includes all grains, pasteurized dairy, starchy vegetables, and refined carbs. The GAPS diet is typically carried out in three main stages, with the first stage being the most restrictive.
The first stage of the GAPS diet, also known as the "gut healing phase", can last from three weeks to one year. During this stage, people are advised to consume homemade bone broth, juices from probiotic foods and ginger, and drink mint or chamomile tea with honey between meals. Those who are not dairy intolerant may also eat unpasteurized, homemade yogurt or kefir. It is common to experience a "`die-off` period" during this stage, where symptoms may temporarily get worse due to an increase in toxins in the body. This can include diarrhea, fatigue, nausea, flu-like symptoms, and skin issues.
The second stage of the GAPS diet involves adding in more foods, such as raw organic egg yolks, ghee, and stews made with vegetables, meat, or fish. The third stage includes all of the previous foods, plus avocado, fermented vegetables, GAPS-recipe pancakes, and scrambled eggs made with ghee or duck/goose fat.
The full GAPS diet can last anywhere from 1.5 to 2 years, and people are advised to base their eating patterns on animal fats, bone broth, and large amounts of fermented foods. The reintroduction phase may begin after experiencing normal digestion and bowel movements for at least six months, and it can be a slow process that takes several months. Even after completing the GAPS diet, people are advised to continue avoiding highly processed and refined high-sugar foods.
While some people feel they have benefited from the GAPS diet, it is important to note that it is very restrictive and may lead to nutritional deficiencies. There is also a lack of scientific evidence to support the claims made by the diet, and it may be especially dangerous for vulnerable populations such as children.
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It can last for 1.5-2 years, with a long reintroduction phase
The GAPS diet is a restrictive protocol that involves cutting out many nutritious foods for long periods of time. It is based on the idea that improving gut health can improve overall health, including psychological and behavioural conditions. The diet was designed by Dr. Campbell-McBride to treat her son's autism, with the belief that poor nutrition and a "leaky gut" are responsible for autism and other behavioural disorders.
The GAPS protocol consists of three main stages, with the introduction phase being the most intense and restrictive. This initial phase can last from three weeks to one year, depending on individual symptoms and health concerns. During this time, people may experience a "'die-off'" period, where symptoms get worse and the body releases toxins into the bloodstream. This can cause an array of unpleasant symptoms, including diarrhoea, fatigue, nausea, flu-like symptoms, and skin issues.
The full GAPS diet, which follows the introduction phase, can last for 1.5-2 years. During this time, people base their meals on bone broth, animal fats, coconut oil, and fermented foods. They avoid grains, sugars, starchy vegetables, refined carbohydrates, and processed foods. After this stage, there is a long reintroduction phase. This final stage involves slowly reintroducing foods back into the diet over several months. The GAPS diet suggests that this reintroduction phase can begin after experiencing normal digestion and bowel movements for at least six months.
The GAPS diet is a very restrictive and challenging diet that may lead to nutritional deficiencies. It is important to note that there is limited scientific evidence supporting the claims made by the GAPS diet, and it has not been scientifically tested. As such, it is recommended that individuals consult with a healthcare professional before starting this or any other restrictive diet to ensure their nutritional needs are met.
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It may cause a “die-off” period, with flu-like symptoms
The GAPS diet is a restrictive protocol that involves cutting out many nutritious foods for long periods of time. It is based on the idea that improving gut health can improve overall health, including psychological and behavioural conditions. The diet involves replacing foods that are difficult to digest with nutrient-rich foods that help the gut heal.
The GAPS diet has six stages, and the first stage is the most intense as it eliminates the most foods. It is called the "gut healing phase" and can last from three weeks to one year, depending on the individual's symptoms. During this stage, people may experience a “die-off" period, where their symptoms get worse before they get better. This is because the gut wall is starting to heal, and as probiotics are introduced, beneficial bacteria compete with the overgrowth of pathogenic bacteria, releasing toxins into the bloodstream.
The "die-off" period can cause flu-like symptoms, including fever, aches, a sore throat, nausea, fatigue, and brain fog or mental fuzziness. These symptoms can last anywhere from 3 to 10 days and may be more severe for some people, especially those with severe digestive issues. For those who experience a severe "die-off" reaction, it may be better to start with the Full GAPS diet until some healing has occurred and their detoxification organs are strong enough to eliminate toxins.
It is important to note that the GAPS diet is very restrictive and may lead to nutritional deficiencies, especially in children who are growing and have higher nutrient needs. There is also limited scientific evidence to support the claims made by the diet's founder, Dr. Campbell-McBride, who originally designed the diet to treat her son's autism. Most experts agree that there is no cure for autism spectrum disorder (ASD).
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This is due to an increase in toxins as gut walls heal
The GAPS diet is a restrictive protocol that involves cutting out many nutritious foods for long periods of time. It was designed by Dr. Campbell-McBride to treat her son's autism, based on the idea that autism is caused by a "leaky gut". The diet is intended to heal the gut and improve overall physical and mental health.
The GAPS diet can be a years-long process, with the full diet lasting at least 1.5–2 years before other foods are reintroduced. The introduction phase, or "gut healing phase", can last from three weeks to one year, depending on individual health concerns and symptoms. During this phase, the diet eliminates many foods, including all grains, pasteurized dairy, starchy vegetables, and refined carbs.
The GAPS diet can cause a "'die-off' period, where symptoms get worse before they get better. This is due to an increase in toxins as the gut walls heal. As the gut wall starts to heal, beneficial bacteria begin to team with the overgrowth of pathogenic bacteria, releasing toxins into the bloodstream for the detoxification organs (especially the liver and skin) to process. This can result in a range of symptoms, including diarrhea, fatigue, nausea, flu-like symptoms, skin issues, and brain fog or mental fuzziness.
The severity of the die-off period can vary, and some people may need to start with the Full GAPS diet to allow for some healing before experiencing the die-off period. The die-off period typically lasts from 3 to 10 days, but it can be longer for those with severe digestive issues. It is important to note that the GAPS diet is very restrictive and may lead to malnutrition, especially in children who need a wider range of nutrients for growth. Therefore, it is recommended to seek guidance from a healthcare professional when following this diet.
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The diet is criticised for lacking scientific evidence
The GAPS diet, which stands for Gut and Psychology Syndrome, is a restrictive protocol that involves cutting out grains, pasteurised dairy, starchy vegetables and refined carbohydrates. The diet was designed by Dr. Natasha Campbell-McBride, who claims that a ""leaky gut" is responsible for many psychological, neurological and behavioural issues, and that improving gut health can improve overall health.
The GAPS diet is criticised for lacking scientific evidence to support its claims. While there are many testimonials of improvement, there is limited published evidence to suggest that following all components of the GAPS diet is necessary to improve psychological or behavioural conditions. The diet is also criticised for being very restrictive, which may lead to nutritional deficiencies and growth issues, especially in children who are growing and need a lot of nutrients.
The GAPS diet is often used for children with autism, as the diet's founder claims that autism is caused by a leaky gut and can be cured or improved by following the GAPS protocol. However, there is currently little evidence to suggest that autism or other conditions such as ADHD and dyslexia are caused by a leaky gut. The diet also does not provide clear guidance on ensuring that all nutritional needs are met, which can be a concern for those with autism who may already have a restrictive diet.
The GAPS diet can be a lengthy process, with the full diet lasting for at least 1.5-2 years before reintroducing other foods. The introduction phase, or "gut healing phase", can also last from three weeks to a year, depending on individual symptoms. During this time, people may experience ""die-off" symptoms, such as diarrhoea, fatigue, nausea, flu-like symptoms, and temporary worsening of current symptoms. These symptoms are believed to be caused by an increase in toxins in the body as the gut wall starts to heal and beneficial bacteria compete with pathogenic bacteria.
While the GAPS diet may help improve gut health and overall health by encouraging the consumption of fewer processed foods and more fruits, vegetables and natural fats, it is important to consult a healthcare professional before starting any new diet, especially one as restrictive as the GAPS diet.
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Frequently asked questions
Die-off is a period during the GAPS diet where the amount of toxins in the body increases. This happens when probiotics are introduced, causing beneficial bacteria to team up with the overgrowth of pathogenic bacteria.
Die-off can last anywhere from 3 to 10 days. During this time, you might experience symptoms such as diarrhea, fatigue, nausea, flu-like symptoms, or a worsening of current symptoms.
Symptoms of die-off include diarrhea, fatigue, nausea, flu-like symptoms, or a temporary worsening of current symptoms, especially skin conditions. Some people also experience "brain fog" or mental fuzziness during this time.
The die-off process is a natural part of the GAPS diet and it's important to let it run its course. However, if you are experiencing severe die-off symptoms, you may want to start with the Full GAPS diet until your body has had time to heal and your detoxification organs are stronger.











































