
The GAPS diet is an extremely restrictive elimination diet that can be hard to stick to for the long periods of time it's intended to be used. It was originally developed to help children with behavioural and digestive issues, but it has since been used by adults to improve digestive problems. The diet is based on the premise that a number of health conditions, specifically digestive disorders and neurodivergent conditions, are caused by intestinal hyperpermeability, commonly called a leaky gut. The GAPS diet claims that healing a leaky gut by eliminating certain foods can improve or cure these conditions. However, there is little evidence to back up these claims and the diet may lead to malnutrition. So, how long will you feel horrible on the GAPS diet? Well, that depends on how long you stay on it.
| Characteristics | Values |
|---|---|
| How long does the GAPS diet last? | 1.5–2 years before reintroducing other foods. |
| How long is the introductory phase? | 3 weeks to 1 year. |
| How long is the reintroduction phase? | Several months. |
| How long before reintroducing foods? | 6 months of normal digestion. |
| How long before moving to the next stage? | Once severe digestive symptoms have resolved. |
| How long in each stage? | 3-5 days, 4-6 weeks, or more. |
| How long before feeling horrible stops? | N/A |
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What You'll Learn
- The GAPS diet is extremely restrictive, which can lead to malnutrition
- It is a long-term process, lasting at least 1.5–2 years
- The GAPS diet is not backed by scientific evidence
- It requires a significant commitment with no guarantee of success
- The diet is time-consuming and may be unenjoyable or unsustainable

The GAPS diet is extremely restrictive, which can lead to malnutrition
The GAPS diet, short for Gut and Psychology Syndrome, is an extremely restrictive elimination diet that requires the elimination of many nutritious foods for long periods of time. The diet was designed by Dr. Natasha Campbell-McBride, a neurosurgeon, to treat her son's autism. It is based on the theory that a ""leaky gut" releases harmful bacteria and toxins into the bloodstream, which then travel to the brain and interfere with its functioning, causing a range of psychological, neurological, and behavioral issues.
The GAPS diet involves cutting out grains, pasteurized dairy, starchy vegetables, and refined carbohydrates. The "gut healing phase", which is the most restrictive part of the diet, can last from three weeks to one year, depending on the individual's symptoms. During this phase, people are advised to consume homemade bone broth, juices from probiotic foods and ginger, and drink mint or chamomile tea with honey between meals. The full GAPS diet can last between 1.5 to 2 years, and even once an individual is off the diet, they are advised to continue avoiding highly processed and refined high-sugar foods.
The GAPS diet is so restrictive that it may lead to malnutrition, especially in children who are growing and require a lot of nutrients. The diet provides little guidance on how to ensure that all nutritional needs are being met, and this lack of clarity could lead to extreme restriction, especially for those with autism who may already have a restrictive diet. In addition, the time and stress involved in preparing special foods may not be manageable in the long term, and social isolation may also become a concern.
While some people feel they have benefited from the GAPS diet, these reports are mostly anecdotal, and there is little solid evidence that the diet can treat or prevent the conditions it claims to. Many health professionals have criticized the GAPS diet because its claims are not supported by scientific studies. If you are considering the GAPS diet, it is important to seek help and support from a healthcare provider to ensure that you are meeting your nutritional needs.
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It is a long-term process, lasting at least 1.5–2 years
The GAPS diet is a highly restrictive elimination diet that requires a significant, ongoing commitment. It is a long-term process that can last at least 1.5–2 years, and sometimes even longer. The diet is designed to heal a "leaky gut", which is believed to be caused by poor nutrition and is thought to contribute to various health issues, including autism and ADHD.
The GAPS diet involves cutting out many nutritious foods, such as grains, pasteurized dairy, starchy vegetables, and refined carbohydrates, for extended periods. The first phase of the diet, the "`gut healing phase", can last from three weeks to one year, depending on individual symptoms. This phase is the most restrictive, with the goal of eliminating foods that may contribute to a leaky gut. The second phase involves slowly reintroducing a limited range of nutrient-rich foods, such as raw organic egg yolks, ghee, and stews made with vegetables, meat, or fish. The final phase focuses on continuing to expand the variety of foods while still avoiding highly processed and refined high-sugar foods.
The GAPS diet is intended to be a gradual process, and the full diet phase can last for at least 1.5–2 years. During this time, individuals are expected to base their meals primarily on animal-based protein, coconut oil, olive oil, and organic foods. The diet recommends slowly reintroducing non-GAPS foods only after experiencing normal digestion and bowel movements for at least six months. This reintroduction phase can also be lengthy, as it involves slowly introducing new foods in small amounts and monitoring for any digestive issues.
It is important to note that the GAPS diet is very restrictive and may be challenging to follow for such a long period. There is a risk of malnutrition, especially for children who are growing and have higher nutritional needs. The diet has not been scientifically proven to be effective, and it may be dangerous for vulnerable individuals. Anyone considering the GAPS diet should consult a healthcare provider to ensure their nutritional needs are met and to carefully weigh the potential risks and benefits.
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The GAPS diet is not backed by scientific evidence
The GAPS diet, which stands for Gut and Psychology Syndrome, is a restrictive diet intended for the natural treatment of autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD), dyslexia, and other mental health conditions. The diet was designed by Dr. Natasha Campbell-McBride, who claims that it cured her first child of autism.
The GAPS diet is based on the theory that a ""leaky gut"" allows chemicals and bacteria from food and the environment to enter the bloodstream and affect brain function and development. However, there is little scientific evidence to support the claims made by the GAPS diet. While there is some research suggesting a connection between the brain and the gut, especially for conditions like anxiety and depression, there is limited evidence to suggest that following the GAPS diet is necessary or effective for improving psychological or behavioral conditions.
The GAPS diet is a very restrictive protocol that requires the elimination of many nutritious foods, such as grains, pasteurized dairy, starchy vegetables, and refined carbohydrates. This restrictiveness may lead to nutritional deficiencies and growth issues, especially in vulnerable young people who are the primary intended audience for the diet. The GAPS diet provides little guidance on ensuring adequate nutrient intake, and there are concerns that it could lead to malnutrition.
Additionally, the GAPS diet is a lengthy process that can last from 1.5 to 2 years or more. The introduction phase, or "gut healing phase," can last from three weeks to one year, and the reintroduction of foods in the final stage can also take several months. The diet suggests that you start the reintroduction phase after experiencing normal digestion and bowel movements for at least six months, but it does not provide clear guidelines on the order or specific foods to reintroduce.
While some people feel they have benefited from the GAPS diet, these reports are anecdotal. There are no rigorous medical studies or research to support the diet's effectiveness in treating the conditions it claims to, and health professionals have criticized the GAPS diet for lacking scientific evidence. Therefore, it is important for anyone considering the GAPS diet to consult with a healthcare provider or registered dietitian to ensure their nutritional needs are met and to carefully consider the potential risks and benefits.
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It requires a significant commitment with no guarantee of success
The GAPS diet is a highly restrictive elimination diet that requires a significant ongoing commitment. The diet was originally developed by Dr. Natasha Campbell-McBride, a neurologist and nutritionist, to address her son's autism. The core of the GAPS diet is the elimination of grains, pasteurised dairy, starchy vegetables, and refined carbohydrates. These foods are replaced with homemade broths, soups, stews, and probiotic foods. The diet is intended to heal a "leaky gut", which is believed to allow harmful bacteria and toxins to enter the bloodstream, causing a host of health issues.
The GAPS diet is a lengthy process that can take years to complete. It begins with an introductory phase that can last from three weeks to one year, followed by a full diet phase that can last from 1.5 to 2 years. The introductory phase is the most restrictive part of the diet, with a very limited selection of foods allowed. The full diet phase allows for a wider variety of foods, but it is still highly restrictive and can be challenging to stick to. The final stage of the diet involves gradually reintroducing foods over several months. The entire process can take longer than two years, and even once the diet is completed, certain foods are advised to be avoided, including highly processed and refined high-sugar foods.
The GAPS diet requires a strict adherence to the protocol outlined by Dr. Campbell-McBride, and deviations from the diet are not recommended. This makes the diet very time-consuming and challenging to follow, especially for vegetarians as the diet relies heavily on animal-based proteins. The diet also lacks guidance on ensuring adequate nutrition, which can lead to malnutrition, especially in children who are growing and have higher nutritional needs.
While some people have reported benefits from the GAPS diet, these reports are anecdotal and not based on scientific studies. There is currently little evidence to support the claims made by the GAPS diet, and it is important to note that there is no guarantee of success. The diet has not been scientifically tested, and there are concerns about its potential to cause harm. As with any diet, it is important to consult with a healthcare provider before starting, especially given the significant commitment required by the GAPS diet.
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The diet is time-consuming and may be unenjoyable or unsustainable
The GAPS diet is a very restrictive protocol that requires you to cut out many nutritious foods for long periods of time. It is a time-consuming and potentially unenjoyable and unsustainable diet. The GAPS diet requires a significant, ongoing commitment with no guarantee of success. It can be a years-long process, with the full diet lasting at least 1.5–2 years before you start reintroducing other foods. The introduction phase, which is the most intense part of the diet, can last from three weeks to one year. This phase eliminates the most foods, including all grains, pasteurised dairy, starchy vegetables and refined carbs.
The GAPS diet is so restrictive that it may lead to nutritional deficiencies and malnutrition, especially in children who are growing and need a lot of nutrients. The diet provides little guidance on how to ensure your diet contains all the nutrients you need. It may also be difficult to modify, as Dr Campbell-McBride, the diet's founder, urges people to follow it strictly according to her blueprint. The GAPS diet is also lacking in scientific evidence to justify its implementation. There is little evidence to suggest that a leaky gut causes conditions like autism, ADHD and dyslexia, or that the GAPS diet can cure or improve these conditions.
The GAPS diet is time-consuming because it requires the preparation of homemade meals and broths, which can take several hours. It may be unsustainable for people who do not enjoy cooking or do not have the time to cook. The diet is also not suitable for vegetarians, as it relies on animal-based protein. The GAPS diet may also be unenjoyable for people who like to eat out, as no restaurant-made food is allowed.
The GAPS diet may be unsustainable for people who are unwilling or unable to commit to a long-term restrictive diet. It may be difficult to stick to because of the restrictiveness and the lack of variety in the allowed foods. The GAPS diet is also not a guaranteed cure for any condition, and there is no substantial evidence that it provides any health benefits.
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Frequently asked questions
The GAPS diet is a long-term process that can take years. The first stage, the "gut healing phase", can last from three weeks to a year. The second stage, the full diet, lasts for 1.5–2 years. The final stage, where you reintroduce other foods, can take several months.
The GAPS diet is a restrictive elimination diet that cuts out grains, pasteurised dairy, starchy vegetables and refined carbohydrates. It was created by Dr Natasha Campbell-McBride, a neurologist and nutritionist, to address various physical and psychiatric issues caused by poor gut health.
The GAPS diet was originally developed to help children with behavioural and digestive issues. However, it is now also used by adults to improve digestive problems.
The GAPS diet is extremely restrictive, which makes it time-consuming to plan and cook meals. It may also lead to malnutrition and/or disordered eating patterns. There is also little evidence to back up the GAPS diet's claims that it can cure or improve certain conditions.













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