Dr. Andreas Eenfeldt, MD


Dr. Andreas Eenfeldt is a Swedish medical doctor specialized in family medicine. He is the founder and CEO of Diet Doctor, part of our fast-growing team of more than 40 co-workers.

During the last ten years Dr. Eenfeldt has authored the biggest health blog in Sweden and a #1 best-selling book on nutrition that’s been translated to eight languages, including English. He may be partly responsible for a past butter shortage in his home country, and one of his conference presentations on low carb has been viewed over 600,000 times on YouTube.

Dr. Eenfeldt spent twelve years working as a doctor and eight of those years as a family physician, treating patients with low-carb, high-fat diets. During that time he witnessed amazing success for people with obesity and type 2 diabetes. But despite that, helping one person at a time couldn’t change the status quo. So in 2015 he quit.

Now he runs the fast-growing health company Diet Doctor together with 40+ co-workers. The Diet Doctor website is completely free from ads, product sales or industry sponsorship and instead fully funded by the people, via an optional membership. It’s by far the largest low-carb and keto website in the world, with about 300,000 daily visits.

Dr. Eenfeldt lives in Karlstad, Sweden with his significant other and their two young daughters. He spends just about all his waking hours either with his family or working on DietDoctor.com. He’s the author of most of the information pages (unless otherwise noted) on the site.

Learn more about Diet Doctor


If you want to contact Dr. Andreas Eenfeldt send an email to andreas@dietdoctor.com. Please note that he reads all emails but has limited time to answer – and he can’t give personal medical advice about diet or health via email.

Dr. Eenfeldt on Twitter, LinkedIn and Wikipedia (in Swedish).

Video courses

How to eat LCHF
The 5 common mistakes on LCHF
Diet & Diabetes – How to Normalize Your Blood Sugar
The Top 5 Tips For Weight Loss


  • A global food revolution
  • Weight Control – Calories or Insulin
  • A Global Food Revolution
  • A global food revolution
  • The Food Revolution
  • Update from Sweden
  • Weight Control, the Calories vs. Insulin Theory
  • A global food revolution


A rare mutation: The answer to obesity?
Short guide on nutritional trickery
Could a low-carb diet shorten your life?
Shortcomings in Health Canada's approach to dietary guidelines revision
Who is to blame for the obesity epidemic?
Why is there an obesity epidemic among Thai monks?
Diet Doctor keeps breaking records!
Early bird special on the Low Carb USA in San Diego 25-28 July 2019!
The paradox of hospitals serving soda
Can an online program on a low-carb diet help people reverse type 2 diabetes?
New York Times: Is the paleo diet right for you?
The keto low-carb challenge: Over 500,000 people have signed up!
Killing for profit – Dr. Aseem Malhotra
The keto diet as a metabolic therapy for mood disorders?
"I make a difference every day"
"I make a difference every day"
"The first life style change to actually work for me"
What do we mean by natural?
"The simplicity of planning, shopping, and cooking was great"
"My pain has gone way down, doctor"
"This has been life changing"
This should be standard of care
The Diet Doctor food policy
How can low carb help type 2 diabetics?
Cardiologist in The Washington Times: 'Carbohydrates are killing us'
Is ketosis just another word for starving?
Cooking Jill's low-carb moussaka
California banning soda taxes for 12 years
Diet Doctor collaboration with top cookbook author Pascale Naessens in Belgian press
What are we wired to eat?
Book your ticket to Low Carb Denver 2019
New guide: Low-carb fast-food options in the US
Cooking keto: Halloumi fries with avocado dip
How do you lose weight on a keto diet?
Low carb awareness increasing in India
The Nordic study of a low-carb diet for type 2 diabetes takes shape
Meet Team Diet Doctor in San Diego this July
Experts: Manage and prevent type 2 diabetes with a low-carb diet
"Good health rarely comes out of a medicine bottle"
Why more protein is better
Looking for a video editor to join the Diet Doctor team in Stockholm
Cooking keto: Jill's cheese-crusted omelet
Congratulations member #50,000!
Support the Food Lies film
A low-carb cult? Article deems LCHF 'magical thinking'
Dr. Ted Naiman: Too much protein is better than too little
Too much protein is better than too little
Food helped give him both hope and his life back
Virta listed by WSJ as #4 of tech startups to keep an eye on
Petition to stop misleading food labelling in Canada
Food for Thought: Live stream Thursday and Friday with top experts about nutrition science and politics
Diet Doctor YouTube channel reaches 100,000 subscribers
'Surgery in a pill': The latest crazy way to lose weight
Dietary fat and cardiovascular disease
We've passed 50,000 members!
Professor Noakes: How to eat and exercise for health
We are not designed to be chronically ill - Tim Noakes
Professor Noakes found innocent (again)! The trial is finally over
Take the FREE keto low-carb challenge
The keto diet: "Not only do I love it, but it has changed my life and body"
The keto diet: "I went from 306 pounds to 225 pounds and I feel fantastic"
Contest – become member number 50,000!
What do we mean by natural?
What do we mean by natural?
New guide to a vegetarian keto diet
More physicians are embracing low-carb and keto diets
Kristie Sullivan on staying keto in the long run
Season 1 trailer: Cooking Keto with Kristie
Heart disease and salt
Food quality: Is low carb enough?
Last week to help fund Fat: A Documentary
Pre-order Keto Living Day by Day
Are you really doing your heart a favor by eating vegetable oils?
New guide: Can a keto diet help with ADHD, autism and more?
Free video: Cooking KeDough pizza with Kristie
My success story with Nathan Wiens
Dietary protein builds strong bones, according to the International Osteoporosis Foundation
Clinical use of therapeutic fasting
Customize or create your own keto meal plans!
How to measure your insulin response
What Halle Berry eats on the keto diet
Experts propose radical anti-sugar plan to tackle type 2 diabetes
Cooking KeDough breakfast pizza with Kristie
Nutritional science is "a scandal" that should "go to the waste bin"
Using low carb in a clinic to treat obesity
Meet me at the Low Carb Universe in November
Open mic
Find a low-carb doctor
New study: Exceptional blood-sugar control for type 1 diabetics on low carb
New guide: Do you need electrolyte supplementation on a keto diet?
My success story with Jim Caldwell
Virta Health aiming to eradicate type 2 diabetes in Indiana
New study: Keto improves cardiovascular health markers
What makes people obese?
Improve chronic pain with a keto diet
Improve chronic pain with a keto diet
Ancestral Health Symposium 2018
Cooking Southern summer tomato pie with Kristie
How do you know you're in ketosis?
Keto for beginners: In ketosis?
Team fat vs. team carbs
Watch The Magic Pill on Netflix
Why high cholesterol is healthy
New cookbook advocates 'real' low-carb foods
Low carb and keto weeknight dinners
Cooking keto: Chicken fajita bowl
All things keto with Keto Connect
Why people get fat
"Let's not wait until HALF the adults are obese until we do something"
Cholesterol: A passenger, not a driver
Cholesterol: A passenger, not a driver
The top low-carb & keto success stories
Teaching low carb to patients in the Middle East
New guide: Keto for mental health
Cooking keto carnitas with Kristie
Cooking keto with Kristie
Meet us at the Low Carb Cruise 2018
Treating type 1 diabetes: fact vs fiction
Treating type 1 diabetes: fact vs fiction
New feature: non-members can now view our video library
The latest science behind a keto diet
New guide for low-carb dietitians
Live stream Thursday. Big Food, Big Pharma: killing for profit?
Professional training in keto nutrition and patient treatment
What about red meat and health?
Thousands tell the USDA to update the outdated guidelines
England: Hospital admissions due to obesity doubles in four years
Eat pasta, lose weight, say Barilla-funded scientists (again)
All men 0-39 low-carb & keto success stories
Solving health problems like an engineer
Virta Health raises $45 million in investment to expand low-carb treatment of type 2 diabetes
All men 40+ low-carb & keto success stories
All women 0-39 low-carb & keto success stories
All women 40+ low-carb & keto success stories
All 600+ low-carb & keto success stories
The sustainable low-carb diet
Study: Keto promising for mild Alzheimer's disease
Keto diets for epilepsy
A book that should change the world: The Diabetes Code by Dr. Jason Fung
7 steps to ketosis
Man loses over 300 pounds on a low-carb diet, says "If I can do this, anyone can"
Can ketones slow down the progression of Alzheimer's?
The ketogenic diet for Alzheimer’s prevention and treatment: can it help?
Cooking lemon cheesecake fluff with Kristie
The keto diet and psychiatric medications – what you need to know
Metabolic flexibility and what makes a diet work
Low Carb Breckenridge 2018
Facing the global mental health crisis
Medical students learn almost nothing about nutrition and lifestyle
A global food revolution
The US: Adult obesity rate hits all time high at 40%
Isn't weight loss all about calories?
Cooking keto video: Mushroom frittata
Canada: Sign the parliamentary petition to change food labelling
New recipe feature: Full nutrition info, including macronutrient grams and calories
Visual keto guides
Why you shouldn't fear protein on keto
Dr. Malhotra on the healthcare crisis: "We can't drug people into being healthy"
Treating type 1 diabetes with a keto diet
The unknown story of vegetable oils
Help change the Canadian dietary guidelines
Cooking Ranch dressing with Kristie
Ignore government guidelines to beat diabetes, obesity, heart disease and save NHS hundreds of millions, UK Prime Minister told
Can keto help treat cancer? Ivor Cummins defending sound science on Primetime
"Humans are not broken by default"
Is fear of protein the new fear of fat?
New study: Four weeks on the keto diet leads to big weight loss and improved health markers
Few spots left for the Gary Taubes event in London on March 17-18th
"After a day or two the hunger goes away"
Most viewed BMJ paper 2017: Saturated fat does not clog the arteries
Watch all of the Low Carb Breckenridge conference – now with time stamps
New keto book: Eat Rich, Live Long
Cooking blue cheese dressing with Kristie
Keto diet proof
Massively important: A unique opportunity to change the US Dietary Guidelines
Op ed: The military should lead the U.S. fight against obesity, using LCHF
Get off the type 1 diabetes roller coaster
My meal plans
New study: Obesity among young children still on the rise in the US
"I sort of wanted to change the world"
In London on the 19-20th of May? Then this might be for you
Is keto the key to reversing type 2 diabetes?
Live stream of Low Carb Breckenridge
How to get back on track when you've fallen off the low-carb wagon
Why and how you should measure ketones
Low Carb Breckenridge 2018 – Watch our live stream!
Customizing keto to help treat cancer
Keto video course part 4: Side effects on a keto diet and how to avoid them
How much protein do you need on a keto diet?
New op-ed: Congress, stop government from dishing out bad dietary advice
Live stream Breckenridge
The keto diet: "I have no doubt that I will reach my goal"
The keto diet: "I don’t call this a diet, but a new beginning"
Cooking keto chicken pot pie with Kristie
The highway to poor health
How to help patients reverse type 2 diabetes
Advanced low-carb topics
Low-carb basics
New study: Isn’t low carb superior for weight loss?