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.


Dr. Eenfeldt's personal story, by Anne Mullens, Jan 2019

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
  • Weight control, the calories vs. insulin theory
  • Weight control – calories or insulin
  • The food revolution
  • 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 and menu
  • Ketogenic diet foods – what to eat

Latest posts

Diet and exercise for a healthy heart
How did you find Diet Doctor?
How to reverse type 2 diabetes and get fitter by the month
How the Miller family regained their health
Women's questions — new video series
Tickets to Low Carb Denver 2019 are back on sale!
This week's meal plan: Fast-food favorites
The 2-week keto challenge: "It’s changed my life already"
How to commit to a lifestyle change — Dr. Jen Unwin
How Jade controls her epilepsy with keto
"Why am I not losing weight on the keto diet?"
Graham went low-carb after 10 years of type 2 diabetes
Dr. Bret Scher: Evaluating the evidence, challenging medical dogma
My success story with Carole Freeman
This week's meal plan: Rickard's vegetarian week
Keto cheese chips cooking video
The 2-week keto challenge: "Keto gives me so much energy"
Meet Jason, seven months in on keto and IF
LCHF Mega Summit attendance hits 2,000
My success story with Katrin Crum
Rachel 20 months after being diagnosed with type 2 diabetes
How Maria finally found her sustainable diet
Don't miss booking your tickets to KetoLadies 2019!
The 2-week keto challenge: "I feel inspired to continue on"
This week's meal plan: On a budget
A low-carb story with Dr. Peter Foley, part 2
How Ricardo lost 240 pounds
Top videos about meat
Isabella on keto: "I feel rejuvenated"
My success story with Mitzi Champion
This week's meal plan: eat like a boss
We’re hiring an experienced and driven editor/writer/journalist
The 2-week keto challenge: "I feel fantastic!! Fantastic!!!"
Mastering your food cravings – Stephanie Dodier
How to prevent chronic disease – Dr. Trudi Deakin
How Michelle finally found a diet she could stick to
A family's keto journey
This week’s meal plan – Dairy free #7
Losing weight when older with a slower metabolism
How keto works – part 2 of our video course is now available for free
Ketone strip shortages (in some areas) endanger patients with diabetes
Dr. Andreas Eenfeldt: Empowering people everywhere to revolutionize their health
A worldwide food revolution – Kim Gajraj
Can a keto diet help with severe gut issues?
Which diet are you planning to pursue in 2019?
How Debra handled her type 2 diabetes diagnosis
A low-carb story with Dr. Peter Foley, part 1
This week’s meal plan – Vegetarian #1
Our #4 most popular video of 2018: Living low carb with Caroline Smale
Get the full Diet Doctor experience!
Exciting times for Diet Doctor!
Our #5 most popular video of 2018: Tim Noakes on trial
My success story with Chuck Hicks
'Fat Chance' – can you ride a bike across Australia without carbs?
How Emre found a sustainable diet
How Tammy and Steve regained their health
Our #7 most popular video of 2018: Bodyweight training for beginners with Dr. Ted Naiman, MD
What happened when Dawn found keto
This week’s meal plan – adapted for 16:8 fasting
Top exercise videos
How Jill Rieder lost weight and found her way to health
Regina did keto instead of bariatric surgery
Top five observational studies of 2018
Top five press articles – 2018
Top five opinion editorials of 2018
Top five medical journal articles of 2018
Feeling like your early 30s in your late 40s
Top 5 low-carb studies of 2018
This week’s meal plan: Family favorites
Happy Holidays from us at Diet Doctor!
"Eating an LCHF diet has reversed my diabetes and changed my life"
"How many calories do keto-fasting people eat?"
How Melissa put her type 2 diabetes in remission
This week’s meal plan: tastes like Christmas!
The 2-week keto challenge: "I feel substantially better than two weeks ago"
How low carb are you?
How Candice got her life back
This week’s meal plan: winter warmth
#1 diet trend on Google 2018
The 2-week keto challenge: "lots of energy, no hunger"
Sugar addiction meets keto
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
Keto Gatherings: Joy with the carbivores
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!
Diet Doctor's adventures in Santiago, Chile
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
Cut avocados with care to avoid a trip to the ER
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!"
Content, community and connection: The value of low-carb conferences
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
My success story with Kenneth Russell
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"
"I was becoming that stereotypical fat doctor"
500 premature deaths from diabetes every week in the UK
Tim Noakes on trial
America's national crisis: childhood obesity
What to do if you fall off the wagon – Dr. Jen Unwin
"Do I need to track my macros daily?"
Watch the Low Carb Houston livestream
This week’s meal plan: it's pumpkin season!
Keto news highlights: Sugar, life expectancy and super-sweet proteins
The 2-week keto challenge: " I feel like the man I once was again"
How Steve won his life-long weight battle and reversed his type 2 diabetes
NYC Health Department is pushing companies to cut sugar
How to stay low carb on a budget — Dr. Eric Westman
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
How IRONMAN athlete Chris Holley lost 200 lbs
UK tax on chocolate is on the way
This week’s meal plan: egg-free meals!
Cooking keto with Dr. Sarah Hallberg
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?
Introducing Sahil Makhija: Low-carb and keto recipes from India
Achieve ketosis through fasting — Ivor Cummins
New questionable health initiative from the candy industry
How Javier went from morbidly obese to having a new life
How to stay low carb on a budget — Dr. Catherine Crofts
Kim Gajraj on the Building a better body podcast!
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
Jacquie after 6 months on keto
Updated page about our membership!
Melbourne Zoo stops feeding its animals fruit
Can 100% fruit juice labels claim "no added sugar"?
How Melanie got her energy back
Stop the blame game; with obesity, look to a metabolic root cause
Introducing Cristina Curp: Recipes inspired by Latin America and Spain
How Stephanie lost a whopping 150 pounds!
Keto news highlights: Insulin resistance, depression and an official apology
How to make a keto plate with Dr. Andreas Eenfeldt
The 2-week keto challenge: "I don't crave sugar anymore!"
Don't miss out on our weekly meal plans!
Some with diabetes resort to black market for affordable insulin
Grassroots change: A town goes sugar-free for 70 days
Are low-calorie shakes the answer to the obesity epidemic?
Which is the best ketone meter? Diet Doctor investigates
Dad lost 91 lbs thanks to keto and running!
Dr. Gary Fettke exonerated! Receives apology from regulators
The acne positivity movement
The future of food
How Sue stopped her lifelong battle with food
Does a Mediterranean diet reduce risk of depression?
This week’s meal plan: lacto-ovo vegetarian dishes
"Successful on LCHF without a gallbladder?"
"I was becoming that stereotypical fat doctor"
The 2-week keto challenge: "It's life changing"
Keto news highlights: Diabetes, Alzheimer's and lard ice cubes
Low-carb recipes for the family!

Latest pages

The complete guide to sugar
Type 1 diabetes – how to control your blood sugar with fewer carbs
Keto nuts – the evidence
Keto snacks – the evidence
Keto alcohol – the evidence
Keto fruits – the evidence
Does the brain need carbs? – the evidence
Explore Diet Doctor
List of evidence-based guides
Keto vegetables – the evidence
In Spanish
Quitting and starting a new life
Living low carb with Jill Rieder: finding her way to health
Get started keto challenge 2019
Vegetable oils – the evidence
Guide to observational vs. experimental studies
Understanding absolute and relative risk
Ketogenic diet foods – the evidence
14-day keto diet plan and menu – 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
Keto gift guide
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
Six ways to stay environmentally friendly on a low-carb or keto diet
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 18-39
Keto success stories: men 40+
Keto success stories: women 40+
Keto success stories: women 18-39
Low-carb video success stories
Keto video success stories
PCOS success stories
Migraine success stories
Type 1 diabetes success stories
Intermittent fasting success stories, men 18-39
Men 40+
Intermittent fasting success stories: Women 40+
All intermittent fasting success stories
Women 18-39
Intermittent fasting success stories
250+ keto success stories
Recipes FAQ
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
Food policy
Is ketosis just another word for starving?
What are we wired to eat?
Top 11 fast-food options for keto or low carb
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
Appendix: The healthy vegetarian keto diet
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 fish and seafood recipes
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


Potential conflicts of interest

Updated December 2018.

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.