The science of low carb and keto
– the evidence

 
This resource is based on scientific evidence, following our policy for evidence-based guides.

It’s written by Dr. Andreas Eenfeldt, MD, with the latest major update on August 29, 2019.1 Further additions and editing by Franziska Spritzler, RD. The resource was medically reviewed by Dr. Bret Scher, MD, on August 21, 2019.2

The guide contains scientific references in the text. You can find more references in the notes throughout the text. Click the links to read the peer-reviewed scientific papers. When appropriate we include a grading of the strength of the evidence, with a link to our policy on this. Our evidence-based guides are updated at least once per year to reflect and reference the latest science on the topic.

All our evidence-based health guides are written or reviewed by medical doctors who are experts on the topic. To stay unbiased we show no ads, sell no products and take no money from industry.3 We’re fully funded by the people, via an optional membership.4

Read more about our policies and work with evidence-based guides, nutritional controversies, our writers team and our medical review board.

Disclaimer: While a low-carb diet has many proven benefits, it’s still controversial. The main potential danger regards medications, especially for diabetes, where doses may need to be adapted. Discuss any changes in medication and relevant lifestyle changes with your doctor. Full disclaimer

This diet plan is for adults with health issues, including obesity, that could benefit from a low-carb diet.

Controversial topics related to a low-carb diet, and our take on them, include saturated fats, cholesterol, whole grains, red meat, whether the brain needs carbohydrates and restricting calories for weight loss.

 
Should you find any inaccuracy in this diet plan and guide, please email andreas@dietdoctor.com.

Return to the science of low carb and keto resource

  1. The latest update includes a number of modest changes in the text, following the latest medical review, and the addition of about 10 more scientific references.

  2. It was also reviewed by Dr. Scher earlier, April 6, 2019.

  3. A full declaration of potential conflicts of interests of individual authors or reviewers can be found on their personal pages, linked from their names.

  4. Most information at Diet Doctor is free forever.

    For our premium member features we offer a free one month trial. After that, should you choose to stay a member, the cost is $9 per month. No commitment, cancel online anytime.

    We currently have more than 60,000 active members. They support our mission – empowering people everywhere – and help us grow our team to achieve this goal.

    Learn more about our membership