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 50 full-time 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 presentations on low carb has been viewed over 4.5 million times on YouTube.

Dr. Eenfeldt graduated from medical school at Uppsala University in 2000. He 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 45+ 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.

Medical license and certificates

Below you’ll find the certificates of Dr. Eenfeldt’s university medical degree, medical license, and his specialist certificate in family medicine.

University Medical Degree
Specialist certificate


Dr. Eenfeldt's personal story, by Anne Mullens, Jan 2019
Quitting and starting a new life (member column, Jan 2019)
How to be less wrong, and building a team that questions everything (member column, Sep 2019)


February 2020 — Everyday Health: Health makers: How the Diet Doctor puts lifestyle changes before prescriptions

Profiles in Swedish:

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
    Weight control, the calories vs. insulin theory
  • A global food revolution
  • Update from Sweden
    The food revolution
  • Weight loss and type 2 diabetes reversal on low carb – is it sustainable?
  • A global food revolution
  • Weight control – calories or insulin
  • 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 selected past conferences.

Full schedule of upcoming low-carb events


Top guides

  • A ketogenic diet for beginners
  • A ketogenic diet for beginners - CTA test Draft
  • 14-day keto diet meal plan with recipes and shopping lists - Draft

Latest posts

Dr. Ted Naiman to help hone higher protein options for better weight loss
Happy holidays from Diet Doctor!
Resolving technical issues as we improve the DD experience
We now have 80,000 members — and counting!
Grillin' with Keto Connect - Juicy butter burgers
Study: Effects of replacing sugar-sweetened beverages with no-sugar alternatives
Ketones and low carb in the time of Covid-19: Helpful or harmful speculation?
Intermittent fasting in women over 60
Contest: Who will be lucky member 75,000?
Trustworthiness is a core value at Diet Doctor
Insights: What if we're wrong about type 2 diabetes?
Low-carb doctors: will you do remote consultations?
Diet Doctor cancels our presence at Low Carb Denver due to coronavirus concerns
Sign up now to start losing weight!
Keto for beginners: Top mistakes
Best of 2019: our top success stories
Best of 2019: our top new guides
Best of 2019: our top news posts
Happy holidays from all of us at Diet Doctor!
Keto meal plan: 15 minutes or less
What's on your playlist?
Keto meal plan — Dairy free #4
Content manager? Join our video team!
How to make keto bagels
Diet Doctor Twitter news
New low-carb vegan guide + meal plan
'Fat Chance' – can you ride a bike across Australia without carbs?
Can you eat keto at Subway?
Are all calories the same?
A ketogenic diet with fewer vegetables
Metabolic flexibility, and what makes a diet work
Keto seed crackers
How much fat, protein, carbs to eat on a keto diet?
Top 3 hot topics in The Diet Doctor Facebook Group
Join five guided weeks of keto with Kristie!
Changes to the Diet Doctor soy policy
This week's DD+ meal plan: Keto: Pescetarian
The keto challenge: "I thought it was a success"
A low-carb diet for type 2 diabetes reversal
Can keto cause severe lasting weakness?
The keto challenge: "The cravings are just not there anymore!"
How do you stay keto when eating out?
New meal plan: Low carb: No more dirty dishes
How Zein manages type 1 diabetes with low carb and exercise (plus insulin)
Putting bipolar 2 disorder into remission
The whole Grillin' with KetoConnect show is out now
What keto groceries should you stock up on?
Keto meal plan: The avocado lover's week
Struggling with food addiction? Then check out this 4-day workshop
Saving lives and healthcare dollars with low carb
Free of IBS on a keto diet
How much fat, protein and carbs should you eat?
New meal plan: Low carb: Soups and salads
Being pregnant and in ketosis
New collaboration with recipe creator and food photographer Naomi Sherman
"I feel like I cracked the code!"
This week’s meal plan: Keto: Summertime favorites
Video course: Eating keto with Kristie
How Gayle managed to change her life to the better at 66
If you can't handle carbs, eat less of them!
'I've never felt or been better!'
How to motivate your patients
How Cecily, MD, found a sustainable eating pattern that worked for her
Why those with obesity need different nutritional advice
Jil traded low-fat diets for a high-fat diet
From depression meds and diet pills to fasting and low-carb eating
Grillin' with KetoConnect: Episode #7 — Taco omelet
The keto challenge: "I’m in it for the long haul"
How to burn body fat efficiently
Grillin’ with KetoConnect: Episode #6 — Steak and veggie kebabs
Start reversing type 2 diabetes right away
How Virginia's life is different one year after going keto
Fasting protocol
How to increase your odds for healthier aging
Grillin’ with KetoConnect: Episode #5 — Grilled salmon with avocado topping
This week's meal plan: Low carb: Delicious BBQ
Keto HEAL Clinics suddenly close
Maureen ditched the carb-loaded food
How Marc reversed type 2 diabetes on a low-carb diet
How Barbara lost those stubborn postmenopausal pounds
Suggestions on how to achieve optimal ketosis?
Grillin’ with KetoConnect: Episode #4 — Grilled flatbread pizzas
This week's keto meal plan: Keto: Vegetarian #3
The keto challenge: " I'm amazed and delighted"
How to best minimize the insulin response long term
New movie in our movie library: Sugar Coated
Top videos from Low Carb Denver 2019
High-intensity training for better heart health?
How Artur turned his life around
The keto challenge: "We are both feeling happy and energetic!"
Grillin’ with KetoConnect: Episode #3 — Barbecue ribs
How Alexandra won her battle with anorexia
This week's keto meal plan: Low carb: Summertime favorites
Cholesterol on keto – Dave Feldman
Peace, Love and Low Carb: New recipe collaboration with Kyndra Holley
What active Katy gained by going on the keto diet
Grillin’ with KetoConnect: Episode #2 — Keto cauliflower ‘potato’ salad
This week's keto meal plan: 16:8 fasting #1
Living low carb — London
The keto challenge: "I have fallen in love with the keto way of eating"
Part 8 of Dr. Jason Fung’s diabetes course
Check out our new map of doctors recommending low carb
What to do when weight loss stalls
"Try Diet Doctor and keto – the only thing to lose is fat"
Every day is Mother's Day
Interview & episode #1 of Grillin' with KetoConnect
This week's meal plan: Low carb: Discover Latin America
How low carb is spreading throughout the world
The best types of food for the best types of fat
Teicholz on the dietary guidelines: "At least do no harm"
"I'm doing things now that I never would have dreamed of doing before"
The keto challenge: "I want to shout it from the rooftops!"
Part 7 of Dr. Jason Fung's diabetes course
How to make Indian butter chicken
How your thoughts affect your body
EAT-Lancet's plant-based planet
How Anita transitioned to the keto diet and changed her life
TEASER: Grillin' with KetoConnect
This week's meal plan: Keto — a taste of Italy
Insulin toxicity — part 6 of Dr. Jason Fung's diabetes course
The keto challenge: "ALL of the food was AMAZING!"
How April dramatically improved her active life with keto
What membership feature do people want as a member of Diet Doctor?
PCOS and insulin resistance
More sustainable, ethical meat? How about trying a steak from older cows?
Normal blood sugar after decades of insulin resistance?
Word is spreading about how low-carb eating can reverse type 2 diabetes
Landmark diabetes report says low-carb is a top option
The keto challenge: "My cravings for sugar are gone!"
This week's meal plan: Low carb: Dairy free #1
How to make crispy chicken skins
How Ashley got rid of all her stomach issues
Why low-fat diets don't work — Dr. Jason Fung's diabetes course
"If you do it right, this will work"
Check out our low-carb and keto recipe collections!
Controlling hunger – part 1
How Dr. Huang adjusted keto to Chinese cuisine
The keto challenge: "You have made being healthy so easy"
Building healthy athletes: from beginner to winner
This week's meal plan: Low carb: Festive Easter week
Insulin resistance and sexual health — Dr. Priyanka Wali
How Deborah turned her hip surgery into a lifestyle change
The keto challenge: "It gave me a new start"
Ketones – the metabolic advantage?
Mainstream food columnist questions dietary guidelines
The carbohydrate-insulin model of obesity — Dr. David Ludwig
Leg cramps cramping your style? New guide aims to help
How a health educator became convinced of low-carb eating
A story about challenges, love and hope
The keto challenge: "It was much easier than we anticipated"
Is there a link between low carb and eating disorders?
This week's meal plan: Keto fast-food favorites
Fire destroys low-carb clinic in Tennessee
A low-carb diet for reversal of type 2 diabetes - Dr. Sarah Hallberg
How J got back to his active self
This week's meal plan: Frida Hofmann's hearty favorites
Weight loss and type 2 diabetes reversal on low carb – is it sustainable?
The keto challenge: "My cardiologist recommended this program"
Top videos about heart disease
How Judy finally won over her migraines
How to think about how to eat — Gary Taubes
Don't miss the Public Health Collaboration Conference 2019!
Managing type 1 diabetes with low carb with Dr. Katharine Morrison
What would you like to see more of on our site?
The keto challenge: "I am not stopping anytime soon."
How Richard conquered his type 2 diabetes
Book your tickets to Low Carb USA Seattle 2019
Can low carb and keto help with PMS?
This week's meal plan: Keto – cheese appreciation week
Can you follow a keto diet if you have high cholesterol?
Low-carb videos from Chile
All presentations from Low Carb Denver 2019 available for members!
How Sher got rid of her baby weight and joint pain
Do you need more carbs when breastfeeding?
Can the keto diet help with migraines?
Watch Low Carb Denver livestream at Diet Doctor
This week's meal plan: Kristin Parker's family favorites
The keto challenge: "This lifestyle was made for me"
Pie-making champion goes low carb
The world's first diabetes and low-carb event!
How do you maximize your health?
Is Weight Watchers 'getting crushed by keto'?
This week's meal plan: Keto #41 – family favorites
The keto challenge: "I lost 11 pounds and my high blood pressure!"
How Leonie successfully manages type 1 diabetes
A low-carb story with Dr. Sanjeev Balakrishnan
Antonietta lost 150 pounds on the keto diet
Top videos on dietary guidelines
The 2-week keto challenge: "First and foremost – it works!"
Can exercise be problematic for women?
DD+ Low-carb meal plan – a taste of the Mediterranean
How to make keto quesadillas
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"

Medically reviewed evidence-based guides

How to treat insulin resistance

Boosting your immune system to fight the coronavirus: what you need to know

What you need to know about OMAD

The guide for doctors skeptical of low carb

How to treat insulin resistance

Ketogenic diet food list

Intermittent fasting for beginners

The Diet Doctor food policy


Potential conflicts of interest

Updated September 2020.

Dr. Eenfeldt is the founder, CEO and the largest shareholder of Diet Doctor.

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.

He also eats a low-carb diet.

No other potential conflicts of interest.


Team Diet Doctor