The ketogenic (keto) diet is a high-fat, low-carbohydrate way of eating. It can help with weight loss by forcing the body to burn fat instead of carbohydrates as its main energy source. While no major cancer group recommends keto diets for cancer prevention or treatment, there is interest in how a ketogenic diet may help treat some types of cancer. One theory is that cancer feeds on the sugar you eat, but a high-fat diet starves the tumors. Research on mice and small trials on humans show that a keto diet may work in several ways, including protecting healthy cells from damage caused by chemotherapy or radiation treatment, helping anti-cancer drugs work faster or better, and easing inflammation, which can encourage cancer growth. However, some studies suggest that a keto diet may also have negative effects, such as promoting cachexia, a wasting disease that can occur with cancer, and raising cholesterol levels. Therefore, it is important to consult with a physician before starting a keto diet, especially for cancer patients.
Characteristics | Values |
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How keto may help prevent cancer | The ketogenic diet may help boost the powers of chemotherapy and other cancer treatments. |
How keto may help treat cancer | Studies on mice and small trials on humans suggest that a keto diet may: protect healthy cells from damage caused by chemotherapy or radiation treatment; help anti-cancer drugs work faster or better; ease inflammation, which can encourage cancer growth; and help prevent weight gain during and after chemotherapy for breast cancer. |
Possible negative effects of keto on cancer | Keto-friendly foods like red meat can increase the chances of cancer. The keto diet is also difficult to stick to because of the limited food choices. Some studies suggest that a keto diet may worsen certain types of cancer. |
What You'll Learn
- Keto may slow the growth of abnormal cells in the colon and colon cancer cells
- The keto diet may protect healthy cells from damage caused by chemotherapy or radiation treatment
- The keto diet may help anti-cancer drugs work faster or better
- The keto diet may help prevent weight gain during and after chemotherapy for breast cancer
- The keto diet may ease inflammation, which can encourage cancer growth
Keto may slow the growth of abnormal cells in the colon and colon cancer cells
A ketogenic diet is a very high-fat, low-carbohydrate way of eating. It can help with weight loss by forcing the body to burn fat instead of carbs as its main source of energy.
A study on mice suggests that a ketone called BHB (β-hydroxybutyrate) can slow the growth of abnormal cells in the colon and colon cancer cells. BHB is produced when the body is in a state of ketosis, which is when the body, in the absence of glucose, starts burning fat for fuel and breaking it down into molecules called ketones.
In the study, mice were fed one of six different diets containing varying levels of fats and carbohydrates. Two of these diets were ketogenic, composed of 90% fat. The mice were then exposed to chemicals that caused them to develop colorectal cancer. The mice fed either of the ketogenic diets had fewer and smaller tumours than mice fed diets with a higher percentage of carbohydrates.
The researchers found that BHB reduced the growth of both normal intestinal tissues, without causing damage to healthy epithelial cells, and of intestinal tumours. BHB binds to a receptor on epithelial cells called Hcar2, which boosts the activity of a gene called Hopx, setting off a cascade that eventually signals cells to stop dividing.
The study's leaders and other experts warned that, although the results are intriguing, they do not mean that a ketogenic diet or taking a BHB supplement should be used to prevent or treat colorectal cancer. Further studies on BHB's effects in people are needed, such as clinical trials using BHB supplements, before any conclusions can be made about its role in cancer prevention or treatment.
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The keto diet may protect healthy cells from damage caused by chemotherapy or radiation treatment
The ketogenic diet, or keto diet, is a very high-fat, low-carbohydrate way of eating. It can help with weight loss by forcing the body to burn fat instead of carbohydrates as its main source of energy. The keto diet is being studied for its potential to help treat some types of cancer. The theory is that cancer feeds on the sugar you eat, but a high-fat diet starves the tumors.
The standard diet recommendation is to limit fats to no more than 30% of your calories, with carbohydrates making up half or more of your daily total. However, the keto diet flips this formula, with up to 90% of calories coming from fats and very few carbohydrates.
When the body doesn't have enough carbohydrates, it switches to burning fat for fuel, a process called ketosis. This process breaks down fat into molecules called ketones. Cancer cells, on the other hand, rely heavily on quickly breaking down glucose, a form of simple sugar, for energy. The keto diet may help deprive cancer cells of their primary energy source, as some cancers cannot use ketones to grow.
The keto diet has been hypothesized to protect healthy cells from damage caused by chemotherapy or radiation treatment in several ways:
- By starving the tumors of glucose, the keto diet may help improve the effectiveness of chemotherapy and radiation treatment.
- The keto diet may help healthy cells by reducing reactive oxygen species and increasing central adenosine levels, thereby reducing inflammation and pain.
- The keto diet may also help prevent weight gain during and after chemotherapy for breast cancer. Maintaining a healthy weight is important because extra weight increases the chance of tumor recurrence.
- The keto diet may also help by modifying gene expression, which in turn controls cell behavior.
While there is ongoing research into the potential benefits of the keto diet for cancer patients, it is important to note that no major cancer group currently recommends keto diets for cancer prevention or treatment. Furthermore, some keto-friendly foods, such as red meat, can increase the risk of certain cancers. It is crucial for cancer patients to consult with their doctor or dietitian before starting the keto diet or any other diet, as their body may not be able to properly break down the proteins and fats in these diets.
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The keto diet may help anti-cancer drugs work faster or better
The Keto Diet: A Potential Ally in the Fight Against Cancer?
The ketogenic (keto) diet has become increasingly popular in recent years, with many people adopting it as a weight loss strategy. The diet is characterised by a very high fat intake, with fat accounting for up to 90% of daily caloric intake, while carbohydrates are drastically reduced. This shift in macronutrient ratios forces the body to enter a state of ketosis, where it burns fat instead of carbohydrates for energy.
While the keto diet is primarily known for its weight loss benefits, there is emerging evidence to suggest that it may also play a role in cancer prevention and treatment. The idea that the keto diet could be an ally in the fight against cancer is an intriguing one, and researchers are actively exploring this potential link.
How the Keto Diet May Help Anti-Cancer Drugs Work Faster or Better
The keto diet may have several mechanisms through which it could enhance the effectiveness of anti-cancer drugs:
- Protection of Healthy Cells: Chemotherapy and radiation treatment can cause damage to healthy cells in the body. The keto diet may protect these healthy cells from this damage, potentially reducing the side effects of cancer treatment.
- Inflammation Reduction: Inflammation can encourage the growth and spread of cancer. The keto diet has been shown to reduce inflammation, which could help slow down the progression of the disease.
- Weight Management: Chemotherapy for breast cancer and other cancers can lead to weight gain, increasing the chances of tumour recurrence. The keto diet may help prevent this weight gain, potentially reducing the risk of the cancer returning.
- Boosting Treatment Efficacy: Cancer cells rely heavily on glucose for energy, and a keto diet may starve these cells of their primary fuel source. By depriving cancer cells of glucose, the keto diet may boost the powers of chemotherapy and other treatments, making them work faster and better.
Ongoing Research and Words of Caution
While the potential benefits of the keto diet in cancer treatment are exciting, it is important to note that research in this area is still ongoing. Most of the current evidence comes from studies on mice, and there have not been any large-scale human trials yet. As such, major cancer groups do not currently recommend keto diets for cancer prevention or treatment.
Additionally, the keto diet may have some drawbacks and risks. It is a challenging diet to adhere to due to its restrictive nature, and it may also lead to an increased risk of certain cancers due to the high consumption of red meat and other processed foods. Furthermore, the long-term effects of the keto diet are not yet fully understood, and it may have negative impacts on cholesterol levels and dietary fibre intake.
In conclusion, the keto diet may hold promise as a complementary approach to cancer treatment, potentially enhancing the effectiveness of anti-cancer drugs. However, more research is needed to fully understand the benefits and risks of adopting this dietary approach. Cancer patients considering the keto diet should do so under the supervision of a physician and in conjunction with standard treatment modalities.
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The keto diet may help prevent weight gain during and after chemotherapy for breast cancer
The keto diet is a very high-fat, low-carbohydrate way of eating. Typically, dietary guidelines recommend limiting fat intake to 30% of calories, with carbohydrates making up half or more of the daily total. However, the keto diet flips this formula, with up to 90% of calories coming from fat and very few carbohydrates consumed. This shift causes the body to enter a state of ketosis, where it burns fat for fuel instead of carbohydrates.
During chemotherapy for breast cancer, patients often experience weight gain, which increases the risk of breast cancer recurrence. The keto diet may help prevent this weight gain, as it is very low in carbohydrates and tends to be low in calories, leading to weight loss over time.
Additionally, the keto diet may offer other benefits for cancer patients. By reducing the body's glucose stores, the keto diet may improve the effectiveness of certain cancer drugs, such as PI3K inhibitors. Research on mice has shown that combining a ketogenic diet with PI3K inhibitors improved the drugs' performance in treating several types of cancer.
Furthermore, the keto diet may protect healthy cells from damage caused by chemotherapy or radiation treatment, enhance the effectiveness of anti-cancer drugs, and reduce inflammation that encourages cancer growth.
While the keto diet has shown potential in cancer therapy, it is important to note that it is not a cure for cancer. There have not been any large studies in humans yet, and it is possible that a ketogenic diet may worsen certain cancers by promoting tumour growth. Additionally, the keto diet is challenging to maintain due to limited food choices, and it may increase the risk of heart disease and obesity.
Therefore, it is crucial to consult with a doctor or dietitian before starting the keto diet or any other diet, as different plans work for different individuals.
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The keto diet may ease inflammation, which can encourage cancer growth
The Keto Diet and Cancer
The keto diet is a very high-fat, low-carbohydrate way of eating. It can help with weight loss by forcing the body to burn fat instead of carbohydrates as its main source of energy. The body achieves this state by breaking down fat into molecules called ketones, a process known as ketosis.
The keto diet has been a subject of interest for cancer research, with studies conducted on mice and small trials on humans. One theory is that cancer feeds on the sugar you eat, but a high-fat diet starves the tumors.
Inflammation is a key factor in the development and progression of cancer. The keto diet has been found to have anti-inflammatory properties, which may help in cancer prevention and treatment.
Research suggests that the keto diet can reduce inflammation, which is beneficial in cancer treatment. Dr. Urvi A. Shah, a myeloma specialist at the Memorial Sloan Kettering Cancer Center, noted that the keto diet has been associated with "weight loss, reduction in glucose, insulin, and inflammation, as well as an increase in beta hydroxybutyrate (ketone bodies), which may have anti-cancer anti-inflammatory effects in certain tumors."
The anti-inflammatory effects of the keto diet are likely due to the reduction of glucose and insulin levels in the body. Inflammation is a complex process involving various cellular and molecular mechanisms. By reducing the availability of glucose and modulating insulin levels, the keto diet may help to regulate the inflammatory response and create an environment that is less conducive to cancer growth.
Additionally, the keto diet may also help protect healthy cells from damage caused by chemotherapy or radiation treatment. This is because cancer cells are rewired to rely primarily on glucose for energy, while healthy cells can utilize ketones as an alternative energy source. By reducing glucose levels and providing ketones, the keto diet may help preserve healthy cells while making it more difficult for cancer cells to survive and grow.
Ongoing Research and Precautions
While the potential benefits of the keto diet in cancer treatment are promising, more research is needed to fully understand its effects. Some studies have suggested that the keto diet may be more effective for certain types of cancer, such as glioblastoma, a very aggressive form of brain cancer. However, it is important to note that the keto diet does not appear to work on other kinds of brain cancer, and there is limited evidence for its effectiveness in other solid cancers.
Furthermore, the keto diet may also have some drawbacks. It can be challenging to adhere to due to limited food choices, and it may raise cholesterol levels and promote weight loss, which is not always desirable for cancer patients. Additionally, some keto-friendly foods like red meat can increase the risk of certain types of cancer. Therefore, it is crucial to consult with a healthcare professional before adopting the keto diet, especially for cancer patients.
In conclusion, the keto diet may hold potential in cancer treatment by easing inflammation and creating an environment that is less conducive to cancer growth. However, more research is needed to fully understand its effects, and it should be approached with caution as part of a comprehensive cancer treatment plan.
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Frequently asked questions
A ketogenic (keto) diet is a very high-fat, low-carbohydrate way of eating. It can help you lose weight by forcing your body to burn fat instead of carbs as its main source of energy. The idea is that cancer feeds on the sugar you eat, but a high-fat diet starves the tumors.
Studies on mice and small trials on humans have shown that a keto diet may:
- Protect healthy cells from damage caused by chemotherapy or radiation treatment
- Help anti-cancer drugs work faster or better
- Ease inflammation, which can encourage cancer growth
- Help prevent weight gain during and after chemotherapy for breast cancer
A keto diet is hard to sustain long-term and may raise cholesterol levels. Some keto-friendly foods like red meat can also increase your chances of developing cancer.
There is very limited evidence that a high-fat, low-carb diet may help suppress solid cancers in the prostate, breast, stomach, and liver. However, researchers have not ruled out the possibility that a keto diet may worsen cancer by promoting tumor growth.