Dr. Bret Scher, MD

bret-scherDr. Bret Scher is a board certified cardiologist and lipidologist practicing in San Diego. He’s our full-time Medical Director, writes medical blogs, reviews guides and news stories for medical accuracy and hosts The Diet Doctor Podcast.

Dr. Scher’s main focus is on preventing and reversing heart disease naturally rather than putting patients on medication and performing surgery. When he started his own preventative wellness center he was introduced to the whole low-carb world. Being a bit skeptical at first, he was soon convinced by the benefits of a low-carb diet.

In Dr. Scher’s many patients suffering from heart disease, he found that there was a big overlap with cardiovascular disease, diabetes, metabolic syndrome and insulin resistance. It was all very interrelated. When he started treating his patients who suffered from heart disease with a low-carb diet, he could quickly see signs of improvements or even full reversal in all of these diseases.

He is also the author of the book Your best health ever!1, and he has a blog and website at lowcarbcardiologist.com.

The Diet Doctor Podcast


Dr. Scher's personal story, by Anne Mullens, Feb 2019


Dr. Scher is on Twitter, Instagram and LinkedIn.

If you want to contact Dr. Scher you can also send an email to bret@dietdoctor.com. Please note that Dr. Scher can’t give personal medical advice about diet or health via email.


Launching the Diet Doctor podcast



"Within days I knew that it would work for me!"
What is a low-carb diet? Don't ask Harvard!
"Mom's using again!"
Researchers reveal that nuts have fewer calories than previously thought
Keto success story: "I wish I had known this 20 years ago"
Get motivated and inspired at Low Carb Denver 2020
Investors back low-carb treatments for type 2 diabetes
Journal firestorm: JAMA documents orchestrated backlash
Op-ed: Mislabelling a diet "low-carb" is dangerous
Coming soon: share with a friend and get a free month
Is keto right for you? In two weeks, you'll know
Diet Doctor podcast #37 — Dr. Jake Kushner
"Keto broke all the rules I had been taught"
Keto success story: "I am officially diabetes FREE!"
There's still time to start Weight Loss for Good
The New York Times starts 2020 with a feature on keto
US News promotes its biased diet rankings… again
New study: low-carb diet reduces food cravings and improves eating control
Coming soon: Let's Get Moving — exercise for beginners
The case for whole milk gets stronger
The New York Times launches 7-day sugar challenge
Ready to lose the weight for good?
Diet Doctor podcast #36 – Dr. Eric Westman
Is intermittent fasting the new norm?
ADA cautiously endorses low-carb nutrition
Keto success story: "I can tell you it has been a Godsend to me"
New program: Weight Loss for Good launches January 2
Low-carb tips for home and family by Team Diet Doctor
New AHA report, but same old dogma
Diet Doctor podcast #35 – Benjamin Bikman
Intermittent fasting is the top diet trending on Google this year
"Why am I more hungry now when I’m only four pounds away from my ideal weight?"
"The LCHF way of eating has changed my life, in fact probably saved it!"
It’s time for more keto research
Study: Low carb better for shrinking fat cells and improving insulin resistance
New “real world” study confirms benefits of a self-selected low-carb lifestyle for type 2 diabetes
Time-restricted eating hits the main stage
Bye bye binge eating! How Abi lost 70 pounds on low carb
Limiting carbs likely better than drugs for fatty liver
Do low-carb diets harm kidney function?
A refresh planned for our Get Started Challenge
Doctors know what works — and it isn’t the guidelines!
Low-carb tips for traveling by Team Diet Doctor
Diet Doctor podcast #34 – Dr. Nasha Winters
Metabolic syndrome and lipogenesis both associated with higher death rates
"I never dreamed this was possible"
"Thank you Diet Doctor for all you do... you truly changed my life"
Keto diet explored on popular Vox podcast
Column: No improvement in diabetes care since 2005. Oh yeah?
"Wow, I feel good!"
The science of carb restriction, ketosis and side effects
Low-carb success story: "Life is good again"
"We are loving this keto diet every way possible"
Norwegians reduce sugar intake — how can we do the same?
Ready for your holiday gift?
A menu for holiday joy
New review: very-low-calorie ketogenic diets are effective for weight loss
The Game Changers review: Should everyone eat a vegan diet?
Much ado about keto and influenza (in mice)
Diet Doctor Podcast #33 – Dr. David Unwin
Sustainable weight loss requires different advice
"I love the keto diet and the results"
Nutrition research is hard. But is that an excuse to not do it well?
What could you learn in five weeks?
How Mike reversed type 2 diabetes in five months
Why can’t mainstream medicine admit low-carb works?
Is it possible that the keto diet doesn’t work for some people?
New study falsely claims low carb worsens diabetes
New study: low-carb education in a group setting for the win
"The two-week keto challenge has changed my life"
"It didn't feel like I was on a diet"
Article: US government doesn't know or care about optimal nutrition
All weight loss is not created equal
"If I can do it, anyone can do it"
Diet Doctor Podcast #32 – Jen Unwin
New expert panel to confirm claims of clinical experience
The sweet sound of a workplace sugar ban
"Diabetes is something that you can tame!"
Speak up to help change the dietary guidelines
"The energy levels are just amazing!"
"I feel young again!"
What should you eat in weight maintenance?
"Buying a little black dress to celebrate"
"Your 2-week kick start plan worked amazingly"
New video series: Low-carb tips with team Diet Doctor
Warnings about processed meat fail the test of science
Diet Doctor Podcast #31 – Dr. Ken Berry
Study: Weight loss as we age — risk or benefit?
Low-carb doctor helping patients in the Philippines
First ever low-carb conference comes to Tel Aviv
"Keto was easier than I thought"
How to make keto Cobb salad
Top 3 low-carb cold and flu home remedies
The keto challenge: "I will definitely continue!"
Trouble-shooting fasting, part 1: Stress
“I feel better than I’ve ever felt!”
Menopause making keto difficult
"It reset my hunger completely"
Putting science first
"My skin is clear and pain free"
Diet Doctor Podcast #30 – Dr. Gary Fettke
How to make keto skillet pizza
Keto success story: "My life has changed for the better"
Keto success story: "Skeptic now a true believer"
The keto challenge: "It made the first two weeks SO EASY"
"I feel healthier and my children are far healthier"
Does evidence support limiting red meat?
Evidence-basing update
Why the scale is not a good marker of successful weight loss
What do you wish you had known when you started keto?
Living low carb with Sue Acres
"To say keto has changed my life is an understatement"
Gut bacteria converting carbs into alcohol may contribute to fatty liver disease
"I highly recommend the keto challenge to anyone who is curious about a keto diet"
Keto success story: "I finally found my way"
Finding a way out
How Tanisha kept it simple on keto and lost 80 pounds in 8 months
The miracle cure
Diet Doctor Podcast #29 – Dr. Spencer Nadolsky
Nutrition and politics don’t mix
Should you fat fast? Here's what you need to know
The keto diet: "Instantly my energy returned!"
"Your body will tell you what’s wrong if you are willing to listen"
Fat-shaming firestorm: Is it motivating or bullying?
The keto diet: "Have moved on to make it a way of life"
Two keto books are best-sellers in Quebec
Do you have any first-world keto problems?
Has Diet Doctor changed its view on LDL?
How Jim reversed type 2 diabetes in three months
Study: Small cuts to carb loads can improve blood sugar
"I started to feel like I was in my 20s again!"
The keto challenge: "Everything was truly delicious and satisfying"
What do you want to ask a low-carb doctor about keto?
The relationship between insulin and ketones
Diet Doctor Podcast #28 – Amy Berger
Alternate-day fasting is safe and effective
New genetic study shows LDL and blood pressure still matter
“The key is just to keep carbs below 20 grams per day”
The keto challenge: "Filling, deliciously full of flavor and successful"
This week's meal plan: Keto: Tex-Mex fiesta!
How much do statins increase lifespan?
What groceries should you always have in your keto kitchen?
Get inspiration and sunshine at the Low Carb Universe 2019
How the keto diet made Dani feel more amazing than ever
Festive beverages
A low-carbohydrate diet lowers blood sugar in type 2 diabetes
How do you build a keto plate?
"I feel 20 years younger"
This week's meal plan: Keto recipes by Kristie Sullivan
The keto challenge: "Priceless knowledge, great support"
Diet Doctor Podcast #27 – David Diamond, PhD
More mainstream coverage for keto diets
How Michael lost 80 pounds on low carb and exercise
New advice on heart health based on the same old weak evidence
The keto challenge: "I have not eaten so well in years"
Prescribing low-carb diets for type 2 diabetes: many approaches can work
Diabetes incidence plateaus at 8.2% of American adults
This week's meal plan: A tasty low-carb Indian week
What is considered "low carb" for an athlete?
"I am grateful to Diet Doctor and appreciative of my transformation"
What creates optimal microbiota?
"Keto has been the easiest and simplest lifestyle change"
Low-carb session draws crowd at Certified Diabetes Educators conference
New study: Reduced-carb diet beats conventional diabetes diet
The physiological adaptation to low carb
Diet Doctor Podcast #26 – Ignacio Cuaranta, MD
Old associations do NOT prove plant-based diets contribute to heart health
Keto dishes bloom in trend-setting LA
New study: blood pressure drops big time on low carb
"I feel great, have tons more energy!"
New low-carb cookbooks by two Diet Doctor team members
Studies: What causes insulin resistance? It's the insulin!
The keto challenge: "I feel great and I am definitely going to stick to it"
'FAT: a documentary' is released today
The keto challenge: "This challenge was absolutely amazing"
"Food and fitness is the world's best medicine"
"The keto challenge was brilliant"
Physicians make a strong case for official low-carb advice
Potential health effects of a saturated fat tax are highly speculative
San Diego low-carb conference set to engage audience
Low-carb and keto diets: Criticism outpaces evidence
Do sugary fruit juices cause cancer?
Diet Doctor Podcast #24 – Robb Wolf
"It’s not a diet, it’s a lifestyle for health!"
Can a low-carb or keto diet work long term?
High-profile ad urges low-carb approach to dietary guidelines
Nearly half of US households include a low carber
Op-Ed: Climate change is real — but don't blame cows
New study casts doubt on the benefit of popular diets and supplements
Grillin' with KetoConnect: Episode #9 – Crispy bacon & kale with fried eggs
This week's meal plan: Keto: Hearty and homemade #6
Study: More evidence that exercise won’t necessarily speed weight loss much
Harnessing evolution during cancer therapy
New documentary tackles dietary fat myths and mistakes
Researchers challenge WHO draft recommendations on saturated fat restriction
Type 1 diabetes: What to do if your doctor doesn't support low carb
We are eating more than in the 70s
"I am a totally different man now"
The keto challenge: "Once you commit to it, it's easy"
This week's meal plan: Keto: Few ingredient meals


Medically reviewed evidence-based guides

How to lower LDL cholesterol on a low-carb diet
Guide for low-carb dietitians
7 things you need to know about alcohol and the keto diet
Low-carb sweeteners, the best and the worst
Top 10 tips to lose weight on low carb or keto for women 40+
Keto drinks – the best and the worst
Low carb and mental health: The food-mood connection
Can keto or low-carb diets improve acne?
The complete guide to ketosis
How to normalize your blood pressure
Low carb & keto for clinicians
Do you need electrolyte supplementation on a keto diet?
Do you need to eat fruits and vegetables?
Should you count calories on a low-carb or keto diet?
Protein on a low-carb or keto diet
Is a low-carb or keto diet right for you?
Low-carb and keto side effects & how to cure them
Gout and low carb
Keto diet foods — top three mistakes at the grocery store
Low-carb fats and sauces – the best and the worst
Guide to red meat – is it healthy?
Keto fats, sauces and oils – the good, the bad and the ugly
A comprehensive guide to salt
Healthy fats on a keto or low-carb diet
How to eat low carb as a vegan
Weight, health and happiness: striking the right balance
What you need to know about low blood pressure
Low-carb snacks – the best and the worst
Low-carb alcohol – the best and the worst drinks
How much protein should you eat?
High blood pressure – what you need to know
Six ways to kick nasty leg cramps to the curb
Low-carb nuts
The diabetes diet: the best foods to control diabetes
“Healthy” whole grains: What the evidence really shows
How to lose weight with a low-carb diet
Why low carb can help you lose weight
What you need to know about a low-carb diet and your kidneys
What is normal blood pressure?
How to lose weight
Cholesterol and low-carb diets
A user guide to saturated fat
Keto sweeteners – the best and the worst
Get started keto challenge 2019
Starting a low-carb or keto diet with high blood pressure
The science of low carb and keto
Top 17 low-carb & keto controversies
Low-carb vegetables
Keto nuts
Keto snacks
Keto alcohol
Keto fruits
Does the brain need carbs?
Keto vegetables
Vegetable oils: What we know and what we don’t
Ketogenic diet foods – what to eat
14-day ketogenic diet plan and menu
A low-carb diet for beginners
A keto diet for beginners

Potential conflicts of interest

Updated August 8, 2019.

Dr. Scher has a full-time contract agreement with DietDoctor.com to serve as Medical Director, run the Diet Doctor Podcast, write medical blogs, and review guides and news stories for medical accuracy. Like every coworker, he also gets the option to become a co-owner in the Diet Doctor company.

He receives book royalties from Your Best Health Ever: A Cardiologist’s Surprisingly Simple Guide to What Really Works.

Dr. Scher is the owner of Boundless Health, Inc, a virtual online health coach consulting service aimed at improving people’s lives through lifestyle interventions.

Dr. Scher eats a low-carb diet.



Team Diet Doctor

  1. Diet Doctor will not benefit from your purchases. We do not show ads, use any affiliate links, sell products or take money from industry. Instead we’re funded by the people, via our optional membership. Learn more