Dr. Bret Scher, MD

bret-scherDr. Bret Scher is a board certified cardiologist and lipidologist practicing in San Diego and licensed to practice in seven states. 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.

Dr. Scher has also obtained specialized certifications in functional medicine, nutrition, personal training, and behavior modification.

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



Diet Doctor podcast #51 — Frank Mitloehner
Diet Doctor Podcast – Looking back on 50 episodes
Is more fasting always better?
Reverse type 2 diabetes with fasting and keto, without losing weight
How the US dietary guidelines continually fall short
Coming soon: groundbreaking conference on type 2 diabetes
New book: well-raised meat is good for you, animals, and the planet
BMJ editorial: Endorse low carb for COVID-19 prevention
Scientific assessment of contraindications to a keto diet
Do plant or animal proteins contribute to risk of dying?
Don’t wait! Get healthy with keto this summer
Diet Doctor podcast #50 — Lucia Aronica
New study: Lower-calorie keto diet works for overweight women
Do fruits, veggies, and grains prevent diabetes?
Can a keto diet help treat eczema?
The metabolic impact of keto for those with and without type 2 diabetes
‘Keto is a way I can eat because I love the food!’
Intermittent fasting in women over 60
Saturated fat vs. sugar: What is the cause of fatty liver?
'Without Diet Doctor, I couldn't have done this'
'It's been life-changing for me — to say the least'
'I feel like a new person!'
Diet Doctor podcast #49 — Dr. Tro Kalayjian
A changing landscape for low-carb diets
Virta Health publishes new data on low-carb diet for type 2 diabetes
'Low carb is the ONLY thing that helped'
Congratulations to Katy, our second contest winner!
'The beauty of this lifestyle is the effortless maintenance'
Can a keto diet and fasting cause skin irritation?
Saturated fat goes mainstream
More than 500+ healthcare providers now on our map
25% of Americans are snacking more since the pandemic hit
Late dinner is worse for your health
Congratulations to Rob, one of our contest winners!
Diet Doctor podcast #48 — Jen Isenhart
Low-carb diet (plus whey protein) improves health markers, study shows
Research shows higher-protein diets increase lean muscle mass
"I am the absolute happiest I have ever been. Ever."
ProPublica: Crusading cardiologist aims to prevent diabetic amputations
New study shows low carb outperforms standard care for type 2 diabetes
We've reached 75,000 members!
"I lost 100 pounds on low carb from 2009 to early 2010"
What we know about cardiac risk factors
“The Diet Doctor lifestyle has been a revelation to me!”
Nutrition Coalition exposes more flaws in dietary guidelines process
Diet Doctor podcast #47 — Adele Hite, PhD
Adele, 56: 20 years low carb, 60 pounds lighter, rarely needs to 'slow down'
Teicholz op-ed: Reduce pandemic's toll with low-carb
Carbs and insulin DO matter for weight gain
"I'm feeling much better at 50 than 40!"
"Keto is the key to finally keeping the weight off for good!"
Why insulin resistance is important when determining whether a person is healthy
Over 1 million people have completed our keto challenge
Yes, you can consume full-fat dairy without causing metabolic disease
New study finds ketones reduce gut-produced inflammatory cells
UK Health Minister reveals success with low-carb eating
New review on saturated fat and heart disease: what it means for you
How might a keto diet help with depression?
Diet Doctor podcast #46 — Dom D'Agostino, PhD
Three new at-home workout plans
How Mike broke free from food addiction with a keto diet
Diabetes Canada publishes paper endorsing a low-carb option
Weight Loss for Good: Analyzing hunger
Unpublished study challenges the insulin model of obesity
Visual guides to the best keto foods
“Keep carbs low and things will fall into place”
Our continuing medical education course is now easy to find
Weight Loss for Good: Improving sleep
Diet Doctor podcast #45 — Brianna Stubbs, PhD
"Every week that passed, my brain felt clearer and more alive"
Elevated blood sugar increases COVID-19 risk even without a diabetes diagnosis
Bad science is bad science, no matter what the conclusions
Weight Loss for Good: Stop cravings
"I now enjoy perfect health"
Do I fit?
Diet Doctor EAT Android App is finally here. Check it out.
Weight Loss for Good: Reducing stress
Diet Doctor podcast #44 — Angela Poff, PhD
Find a low-carb doctor now
"Why does my ketone level fluctuate?"
New study finds obesity is the most important risk factor for type 2 diabetes
Obesity as a risk factor for coronavirus complications
“If it’s not effortless, then there’s something that needs to be changed”
"I'm feeling better than I have in years"
FREE continuing medical education course on low carb
Biased paper suggests ketones are as harmful as glucose
Putting the pieces together
Health agencies embrace homemade face masks
Diet Doctor podcast #43 — Audra Wilford
“Within one year of going keto I was prescription-free for the first time in decades!”
Are all diets the same for weight loss and cardiac risk?
Help support the largest study ever of how an LCHF diet affects type 2 diabetes
Feeling snack-y?
Mythbusting to help reverse type 2 diabetes during the time of coronavirus
Get started on keto for FREE
Watch the Low Carb Denver 2020 recorded sessions
Keto ideas for Easter baskets
How Mark finally overcame his sugar addiction
"How can I ensure I get enough nutrition on OMAD?"
No, you take it
Diet Doctor podcast #42 — Bret Scher, MD
Calling Android users: help test our app
How Amy lost 90 pounds and got off her meds
Wishin' won't make it so
New study: Ketones stabilize brain function
Six tips for low-carb COVID-19 preparedness
Low Carb Denver 2020: Day three
How Ricky turned his life around and lost 210 pounds
Low Carb Denver 2020: Day two
Low Carb Denver live stream: Today's program
Low Carb Denver 2020 live stream starts tomorrow
Diet Doctor podcast #41 — Brian Lenzkes
Keto helped Carolina reverse PCOS and lose 200 pounds
Should olive oil replace all fats?
Diet Doctor free CME course: help us spread the word
"The keto diet has changed my life for the better and I know it can change yours too"
Do vegetarians have fewer strokes?
How to get into optimal ketosis?
Calling all low-carb doctors: sign a letter protesting misinformed reporting
Expert panel agrees – limits to saturated fat are not evidence-based
Diet Doctor course for clinicians coming soon
Watch the live stream of Low Carb Denver – sign up for free now
Tired of eating eggs?
Diet Doctor podcast #40 — Ted Naiman
Bigger breakfasts increase calorie burn rate. Should we care?
"After 10 days on the keto diet, I started feeling light"
Diet Doctor Eat reviews: putting the app in appetizing
"This was the BEST thing that I could have ever done for myself"
TMAO – Smoking gun or passive observer?
Crazy Busy Keto: why fast & simple keto is a winner
Realistic expectations set you up for success
Vegetable oils, friend or foe?
"Turns out the 40s are the best years"
Does milk “do a body good”?
Cook and shop with Diet Doctor Eat
Low-carb tips for social events by Team Diet Doctor
A bright light at the end of our Android tunnel
Diet Doctor podcast #39 — Ben Bocchicchio
How analyzing hunger helps you lose weight
Get a free month, and give your friends a $10 discount!
Increased inflammation on keto?
Ketone measurements may not all be the same. But does it matter?
"I’m becoming healthier and healthier"
Low-carb and high-carb diets have similar effects on hunger
Could eating a keto or LCHF diet harm bone health?
Ketogenic diet may help eating disorders
Which Diet Doctor program is right for you?
The low-carb approach
Weak associations from new meat study grab headlines
How to hack a weight-loss stall
"I feel great and I am full of energy"
Eggs and our health: back in favor
Breaking news: American Diabetes Association CEO manages her diabetes with a low-carb diet
"The seizures stopped immediately and have not returned"
Study: Swedish nutrition students are consuming fewer carbs and more fat
Free can be expensive
New JAMA article discusses benefits of keto diet but warns it may be risky long term
Is keto harmful after a week? It might be for a mouse
“I ate simply, ate enough, and started losing weight from day one”
Thoughts from the USDA Dietary Guidelines for Americans committee meeting, Houston, TX, USA
Diet Doctor podcast #38 — Dr. Hassina Kajee
"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


Medically reviewed evidence-based guides

Weight gain and menopause: 8 tips to win the battle of the middle-age bulge
Fatty liver disease and keto: 5 things to know
Carbohydrates on a keto or low-carb diet
Trying to conceive? Try the better baby diet of beef, butter & bacon
What is a keto diet, and other common questions
How much food is 20 or 50 grams of carbs?
Low-carb drinks – the best and the worst
Diet Doctor’s policy on eating meat
Starting low carb or keto with diabetes medications
Ketogenic diet food list
How low carb is low carb?
How low carb is keto?
Low-carb foods
Eating low carb or keto when breastfeeding
Can low carb help lung disease?
Time-restricted eating – a detailed intermittent fasting guide
FAQ about low-carbohydrate diets and mental health
Type 2 diabetes
IBS and the keto diet
How to reverse your type 2 diabetes
Type 2 diabetes – What happened and how we can fix it
Ketogenic diet for mental health: Come for the weight loss, stay for the mental health benefits?
How to potentially reverse PCOS with low carb
Sinking our teeth into the carnivore diet: what’s known, what’s not
How sugar may damage the brain
The ketogenic diet for Alzheimer’s prevention and treatment: can it help?
Is low carb and keto safe during pregnancy?
Can low carb or keto help with gestational diabetes in pregnancy?
Low carb and mental health: Getting started and managing medications
Can a keto diet treat brain cancer?
Setting realistic expectations
How to follow a healthy vegetarian keto diet
Harnessing hunger with a low-carb lifestyle
Troubleshooting a weight-loss stall with our tips and 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.



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