Dr. Andreas Eenfeldt, MD

DD_AndreasDr. 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. It’s instead fully funded by the people, via an optional membership. Diet Doctor is by far the largest low-carb and keto website in the world, with over 350,000 daily visits.

Dr. Eenfeldt is also on the board of The Dietary Science Foundation, a non-profit dedicated to improving scientific knowledge and helping more people live healthier lives. This board position is unpaid.

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 many of the core information pages 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 is on TwitterLinkedIn and Wikipedia.

Video courses

Keto course with Dr. Andreas Eenfeldt
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
  • A global food revolution
  • A global food revolution
  • The food revolution
  • Weight control – calories or insulin
  • Weight control, the calories vs. insulin theory
  • Update from Sweden
  • A global food revolution


Dr. Andreas Eenfeldt regularly presents at global low-carb conferences. Watch some of these presentations above. Below you’ll find a list of future and selected past conferences.


Full schedule of upcoming low-carb events


Top guides

  • A ketogenic diet for beginners
  • 14-day keto diet plan
  • A low-carb diet for beginners

Latest posts

This week’s meal plan: winter warmth
The 2-week keto challenge: "lots of energy, no hunger"
Sugar addiction meets keto
Low Carb Universe: KetoLadies 2019
Can you write a short review about Diet Doctor?
Struggling to afford insulin
This week’s meal plan: Dr. Andreas Eenfeldt's favorites
The 2-week keto challenge: "I feel fantastic and in total control"
Understanding and treating type 2 diabetes — Dr. Jason Fung
All day I dream about food – introducing Carolyn Ketchum
Fat is no longer at the top of the ingredients-to-avoid list
How cholesterol really works – presentation with Dave Feldman
"Trying to heal my broken brain"
A ketogenic diet and brain cancer
The 2-week keto challenge: "I have energy!"
Treating patients with low carb – workshop for doctors
This week’s meal plan: on a budget
We're updating our 2-week keto challenge!
Powerful beverage lobby is battling to keep juice in new Canadian food guide
Achieve ketosis through fasting — Ivor Cummins
Tim Noakes on trial – full documentary on YouTube
"Will I have weight loss if I'm over 20 g carbs per day?"
How Jonathan ended his junk-food habits
This week’s meal plan: new life to holiday leftovers
Is a low-protein, high-carb diet the key for a better aging brain? Maybe in mice
Keto news highlights: A major low-carb victory and a major butter theft
The 2-week keto challenge: "keto is a life changer"
How James came off insulin, after 20+ years with type 2 diabetes
Dr. Eenfeldt about the past and future of Diet Doctor, on the Keto Woman Podcast
How Richard got a new life at 69
This week’s meal plan: dinner in 30 minutes or less
A low-carb story with Dr. Campbell Murdoch
Is 2020 the year for real change in the dietary guidelines?
Reporting from the Low Carb Universe 2018 conference
The 2-week keto challenge: "This is awesome!"
"Lies my doctor told me" – Dr. Ken Berry
Bodyweight training for beginners with Dr. Ted Naiman, MD
Suzanne Ryan shares her dramatic keto weight-loss story on Dr. Oz
Steven got his self-esteem and confidence back!
The 2-week keto challenge: "My arthritis pain is GONE!"
How Bill reversed his type 2 diabetes and lost 94 lbs
This week’s meal plan: hearty and homemade
"Could it be the sugar?"
Keto news highlights: $$$$$$$$, butter nonsense and NASCAR
Diet Doctor podcast #6 – Todd White
The economic burden of obesity and diabetes
My success story with Gillian Szollos
Big Food's hold over nutrition research
Kids are exposed to hundreds of junk-food ads each month
"Today, I was declared not currently diabetic!"
Elevated BMI tied to shorter life
Temptation — don't avoid it, remove it
Keto news highlights: Metabolome, the FoodHub and Big Sugar
This week’s meal plan: meals in 30 minutes or less
NASCAR driver Michael McDowell succeeding on keto
The 2-week keto challenge: "The diet is giving me back my youth"
500 premature deaths from diabetes every week in the UK
Tim Noakes on trial
America's national crisis: childhood obesity
"Do I need to track my macros daily?"
Watch the Low Carb Houston livestream
Keto news highlights: Sugar, life expectancy and super-sweet proteins
How Steve won his life-long weight battle and reversed his type 2 diabetes
NYC Health Department is pushing companies to cut sugar
Metabolic syndrome starts early, even in seemingly healthy young children
Can cheese and butter protect against type 2 diabetes?
How Daniel beat his type 2 diabetes and lost over 40 pounds
Prominent Harvard scientist discredited after fabricating data
UK tax on chocolate is on the way
This week’s meal plan: egg-free meals!
The 2-week keto challenge: “I feel totally in control”
Keto news highlights: A diabetes sweep, candy PR and American cheese
Is the tide turning in Australian dietary advice?
Win a trip for two to the Low Carb Cruise 2019 in the Caribbean!
New questionable health initiative from the candy industry
How Javier went from morbidly obese to having a new life
This week’s meal plan: flavors from around the world
"The human body needs good saturated fats"
The 2-week keto challenge: "Keto is now part of our life"
"Lies my doctor told me" – presentation by Dr. Ken Berry
Melbourne Zoo stops feeding its animals fruit
How to make a keto plate with Dr. Andreas Eenfeldt
Some with diabetes resort to black market for affordable insulin
Are low-calorie shakes the answer to the obesity epidemic?
Which is the best ketone meter? Diet Doctor investigates
"I was becoming that stereotypical fat doctor"
Keto video course, part 8: Health effects
Nina Teicholz in WSJ: "Carbs, good for you? Fat chance!"
New guide: Carbs on a low-carb or keto diet
Should journalists avoid reporting on most food studies?
How much protein do you need?
How to use a low-carb diet as a treatment
The very first episode of the Diet Doctor Podcast: Gary Taubes
We're launching the Diet Doctor podcast!
Doctor transforms her health with low carb and pays it forward
Is modern medicine a threat to public health?
Losing weight by delaying breakfast and having an early dinner
Could an all-meat diet cure some diseases?
Do exogenous ketone supplements work? The big test
People with type 2 diabetes trying a low-carb diet
New keto and low carb guide: Healthy fats
Join us at the LCU conference in November!
Harvard professor: Coconut oil is "pure poison"
Type 2 diabetes rises dramatically among young people
Dr. Malhotra on BBC News: "Claim that low-carb shortens lifespan is completely false"
How a keto diet could ease chronic pain
AHA: Focus on healthy foods, not diversity
Could a keto diet increase the risk of diabetes (if you're a mouse)?
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!
The keto diet as a metabolic therapy for mood disorders?
"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"
"This has been life changing"
The Diet Doctor food policy
Cardiologist in The Washington Times: 'Carbohydrates are killing us'
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
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"
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
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
We've passed 50,000 members!
Professor Noakes: How to eat and exercise for health
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"
I went from 306 pounds to 225 pounds and I feel fantastic
Contest – become member number 50,000!
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
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
Dietary protein builds strong bones, according to the International Osteoporosis Foundation
Customize or create your own keto meal plans!
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"
Meet me at the Low Carb Universe in November
New study: Exceptional blood-sugar control for type 1 diabetics on low carb
New guide: Do you need electrolyte supplementation on a keto diet?
Virta Health aiming to eradicate type 2 diabetes in Indiana
New study: Keto improves cardiovascular health markers
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?
Watch The Magic Pill on Netflix
New cookbook advocates 'real' low-carb foods
Cooking keto: Chicken fajita bowl
Why people get fat
"Let's not wait until HALF the adults are obese until we do something"
Cholesterol: A passenger, not a driver
The top low-carb & keto success stories
New guide: Keto for mental health
Cooking keto carnitas with Kristie
Meet us at the Low Carb Cruise 2018
Treating type 1 diabetes: fact vs fiction
New feature: non-members can now view our video library
New guide for low-carb dietitians
Live stream Thursday. Big Food, Big Pharma: killing for profit?
Professional training in keto nutrition and patient treatment
Thousands tell the USDA to update the outdated guidelines

Latest pages

Understanding absolute and relative risk
Ketogenic diet foods – the evidence
14-day keto diet plan – the evidence
Eating better: Six steps down the carb mountain
Understanding and treating type 2 diabetes – Dr. Jason Fung
A low-carb diet for beginners – the evidence
How cholesterol really works – Dave Feldman
Treating patients with low carb – workshop for doctors
Weight loss
A ketogenic diet for beginners – the evidence
The Diet Doctor policy for evidence-based guides
The Diet Doctor policy for grading scientific evidence
Psyllium husk guide
Tim Noakes on trial
How to commit to a lifestyle change
Low Carb Houston 2018 livestream
How to stay low carb on a budget – Dr. Eric Westman
Should you count calories on a low-carb or keto diet?
How IRONMAN athlete Chris Holley lost 200 lbs
Achieve ketosis through fasting
How to stay low-carb on a budget — Dr. Catherine Crofts
"Lies my doctor told me"
The best ketone meter
Helping patients adopt low carb
Favorites & watch later
Low-carb guides
Video topics
Keto for beginners: Health effects
My success story with Cindy Miller
Diabetes guides
Weight loss guides
Top intermittent fasting videos
Intermittent fasting guides
Carbohydrates on a keto or low-carb diet
How to handle difficult low-carb cases
Monitoring patients on low carb: Lab tests
Protein on a low-carb or keto diet
Launching the Diet Doctor podcast
The Diet Doctor Podcast
Lab tests
Exogenous ketones: Do they work?
Low carb for doctors - top videos
Keto guides
Keto Success Stories: Over 100 Pounds (45 kg) to Lose
Keto Success Stories: 50-100 pounds (23-45 kg) to Lose
Success stories: 20-50 pounds (9-23 kg) to lose
Success stories: Up to 20 pounds (9 kg) to lose
Over 100 pounds (45 kg) to lose
Success stories: 50-100 pounds (23-45 kg) to lose
Success stories: 20-50 pounds (9-23 kg) to lose
Success stories: Up to 20 pounds (9 kg) to lose
600+ weight loss success stories
How to use the nutrition facts label
Ingredients to avoid on a low-carb or keto diet
Keto diet foods — Top three mistakes at the grocery store
Keto diet food list – what to buy
Healthy fats on a keto or low-carb diet
All diabetes success stories
All keto success stories
Epilepsy success stories
Acne success stories
Keto success stories: men 0-39
Keto success stories: men 40+
Keto success stories: women 40+
Keto success stories: women 0-39
Low-carb video success stories
Keto video success stories
PCOS success stories
Migraine success stories
Type 1 diabetes success stories
Men 0-39
Men 40+
Intermittent fasting success stories: Women 40+
All intermittent fasting success stories
Women 0-39
Intermittent fasting success stories
250+ keto success stories
Killing for profit – Dr. Aseem Malhotra
"I make a difference every day"
"My pain has gone way down, doctor"
This should be standard of care
Low carb for people with type 2 diabetes
Is ketosis just another word for starving?
What are we wired to eat?
Why more protein is better
Too much protein is better than too little
Dietary fat and cardiovascular disease
We are not designed to be chronically ill - Tim Noakes
What do we mean by natural?
How to follow a healthy vegetarian keto diet
Heart disease and salt
Food quality: Is low carb enough?
My success story with Nathan Wiens
Clinical use of therapeutic fasting
How to measure your insulin response
Using low carb in a clinic to treat obesity
Open mic
Find a low-carb doctor
My success story with Jim Caldwell
What makes people obese?
Improve chronic pain with a keto diet
Team fat vs. team carbs
Why high cholesterol is healthy
Low carb and keto weeknight dinners
All things keto with Keto Connect
Cholesterol: A passenger, not a driver
Teaching low carb to patients in the Middle East
Cooking keto with Kristie, season 1
Treating type 1 diabetes: fact vs fiction
The latest science behind a keto diet
Guide for low-carb dietitians
What about red meat and health?
All men 0-39 low-carb & keto success stories
Solving health problems like an engineer
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
Keto diets for epilepsy
Metabolic flexibility and what makes a diet work
Low Carb Breckenridge 2018
Facing the global mental health crisis
A global food revolution
Isn't weight loss all about calories?
Visual keto guides
Why you shouldn't fear protein on keto
Treating type 1 diabetes with a keto diet
The unknown story of vegetable oils
"Humans are not broken by default"
Is fear of protein the new fear of fat?
"After a day or two the hunger goes away"
Get off the type 1 diabetes roller coaster
"I sort of wanted to change the world"
Why and how you should measure ketones
Customizing keto to help treat cancer
The highway to poor health
How to help patients reverse type 2 diabetes
Advanced low-carb topics
Low-carb basics
The three most common myths about low carb
Weight loss
Low-carb cooking videos
Get started
Living low carb with Chris Hannaway
Low-carb and keto experts
Mini documentaries
"A more pleasurable way to live"
How to make healthy babies
Visual low-carb guides
Low-carb sweeteners, the best and the worst
Living low carb with Caroline Smale
A strategy to make low carb adoptable
Keto sweeteners – the best and the worst
The keto diet app and how it can help you
Low carb for doctors: Summary and conclusion
What really causes heart disease?
Diet, health and the environment
Do you need to check your ketones?
Login – returning members
Being a keto doctor in the Middle East
The keto meal plan service
Q&A with Franziska Spritzler
How low carb is keto?
Top presentations on low carb basics
Top presentations on weight loss
Top presentations on advanced low-carb topics
Dr. Dominic D'Agostino
Top videos about cholesterol
Achieve a healthy low-carb lifestyle
Low Carb Vail 2016
Low Carb Cruise 2015
Low Carb Cruise 2016
The LCHF Convention – Cape Town 2015
All presentations ranked
Low-carb basics with Dr. Andreas Eenfeldt
Low-carb doctors
Success stories, low-carb doctors
Success stories, weight loss
Success stories, type 2 diabetes
Success stories, type 1 diabetes
Success stories, men 0-39
Success stories, men 40+
Success stories, women 40+
Success stories, women 0-39
Top videos about sugar
Top videos about saturated fat
Top Paleo videos
Insulin, the fat-storing hormone
Dr. Eric Westman
Low-carb basics
All videos ranked


Potential conflicts of interest

Dr. Eenfeldt is the founder, CEO and the largest shareholder of Diet Doctor.1 He also eats a low-carb diet.

No other potential conflicts of interest.


Team Diet Doctor

  1. The Diet Doctor company focuses on empowering people everywhere, by making low carb simple.

    Since the start of the company in 2007 Dr. Eenfeldt has been paid less than a regular doctor’s salary for his work (including all salaries and dividends).

    All income from Dr. Eenfeldt’s book sales and lectures go straight to the company, to further our mission.