CEO Black Pear Software, ecological medicine GP. 30+ years of delivering healthcare technology to improve patient care. Chair of Trustees @phcukorg
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Joined August 2009
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Dr David Jehring retweeted
The single patient record's first milestone is improved access for at least 80% of patients by March 2027, through existing shared care records.
Our CEO @djehring on what six years of SIDeR+ in Somerset suggest about making that access count:
blackpear.com/news/single-pa…
Dr David Jehring retweeted
So what a success the @lowcarb_aus conference in Sydney has been ! Three days packed with great presentations and tasty food. Many thanks to Rod Tayler @DrPeterBrukner @DrPaulMason @DefeatDiabetes_ for hosting us once again. We are well on our way home now
Dr David Jehring retweeted
Fred Kummerow told America in 1957 that the fat in margarine was turning up in the arteries of the dead. The government acted on it in 2015. He was 100.
He was a biochemist at the University of Illinois, and what he had done was simple and slightly grim. He got hold of tissue from people who had died of heart disease and looked at what their arteries were made of. They were full of trans fats, a kind of fat that barely exists in nature and came, in 1957, from one place: the hydrogenated vegetable shortening and margarine the country had just been told to eat in place of butter.
He published it in Science. He was 43.
What followed was a career spent being ignored by experts. The oil industry had friends on every committee. His funding grew thin. In 1968 he talked a panel of the American Heart Association into warning about trans fats, and the warning was pulped and reprinted without it after the shortening makers saw a draft.
Kummerow kept working. He kept his laboratory into his nineties. And he kept eating, quite deliberately and in front of journalists, the diet he had been told would kill him. Eggs cooked in butter. Whole milk. Red meat. He had looked inside the arteries himself and he had not found breakfast in there.
In 2009, aged 94, he filed a formal petition asking the Food and Drug Administration to ban artificial trans fats. The law gave the agency 180 days to answer. Four years later it had not, so in 2013, at 98, he sued the United States government.
Three months after that the FDA announced it agreed with him. The ban was confirmed in 2015. The gap between his paper and the decision was 58 years, which is longer than most of the people who ate the margarine got.
He died in 2017, at 102.
And he spent those last years on a second warning, which has been received exactly as the first one was. The problem, he said, was never the cholesterol in the egg. It is the vegetable oil in the fryer, heated and reheated until it oxidises, and then eaten.
On the record so far, that one is due to be acted upon in about 2070.
Dr David Jehring retweeted
Magnesium so important BUT serum magnesium is only a small part of the story as Magnesium tends to be intracellular
How can you follow a structured approach for evaluating and managing hypomagnesaemia in community settings?
This Practice Pointer offers guidance #MedEd
bmj.com/content/394/bmj-2026…
Dr David Jehring retweeted
SACN GOVERNMENT ADVISORY BOARD conflicts of interest:fewer but not none @DoctorChrisVT @bmj_latest
Nearly a third of the government’s nutrition advisors still have “significant” ties to the food industry, including Coca Cola, reveals our new investigation.
Despite a new code of conduct banning links, members with ties are allowed to remain in post
bmj.com/content/394/bmj-2026…
Dr David Jehring retweeted
This podcast I did developed to become very wide ranging & unexpectedly emotional towards the end, but now when I look back Alberto Zandi of @Thriving_Minds_ did a great job, I trusted him enough to share stuff I have never shared publicly before See what you think 🤔 youtube.com/watch?v=z-jTIJPq…
Dr David Jehring retweeted
Insulin resistance and its twin sister hyperinsulinaemia probably account for 80% of my work as a doctor It predates T2D by about 10 years Critically it responds to a low carb diet more than a low fat diet Please look at our review published here mdpi.com/2072-6643/18/16/266… @BenBikmanPhD @BraciaRodzen @ketoproject1
Dr David Jehring retweeted
Such an interesting study. Participants all lost about 10% body weight on three very different diets BUT what happened in terms of cardiometabolic measurements was VERY DIFFERENT, LOOK at the triglycerides and liver insulin sensitivity, so much better on a ketogenic diet I feel this is because diets express themselves via hormones like insulin. A calorie is not a calorie, it depends! cell.com/cell-metabolism/ful…
Dr David Jehring retweeted
Obesity HAS DOUBLED since 1995!! It’s because we have serious problems with our food supply, 60% is junk bbc.co.uk/news/articles/cd0x… Our younger people are particularly badly hit. Junk food is addictive like cigarettes. In ourNHS practice we achieve 10% weight loss @drjenunwin @BraciaRodzen
Dr David Jehring retweeted
So for years now we have been seeing significant improvements in blood pressure in patients who choose a low carb diet despite deprescribing anti hypertensive medications Helped by Prof Brady and @DrScottMurray we published this mdpi.com/2227-9059/14/8/1728
Dr David Jehring retweeted
How interesting!!
β-hydroxybutyrate: A Renoprotective Hormone In Polycystic Kidney Disease
--> New review article just published
--> BHB is not just burned for energy - it is also a hormone with important effects protecting the kidneys
--> doi.org/10.1152/ajpendo.0006…
Dr David Jehring retweeted
Purpose should be visible in results.
In Humber and North Yorkshire, shared end-of-life care information helped avoid 5,000+ ambulance conveyances and free 20,000+ hospital bed nights.
Behind every number is a human moment.
blackpear.com/news/why-we-do…
#Interoperability
Dr David Jehring retweeted
Please share!
The Children's Mental Health Resource Center is recruiting for the next cohort of its longitudinal ketogenic therapy study in young people ages 6 through 20. The cohort begins September 1, 2026, and CMHRC needs at least twenty participants. When they contacted me, only eight had completed the screening and enrollment process.
This is one of those moments when everyone who says we need better evidence in metabolic psychiatry has to understand what producing that evidence actually requires. It requires families willing to participate and we are going to help them find them. Please share this post far and wide in groups and among your professional contacts.
The first fourteen days of the study are completed without changing the diet so that the research team can establish a baseline. Participants then follow a ketogenic food plan for two years while tracking symptoms, food intake, blood glucose, and ketones. Assessments are completed four times each year. After the active portion of the study ends, families meet with the research team four times a year for another five years. This is a meaningful commitment because the question being studied is larger than whether someone can produce ketones for a few weeks. The researchers want to know whether families can implement ketogenic therapy at home, whether symptoms change, and what happens over time.
The study does not expect perfection. This is important. A family does not invalidate the research by having difficulty. Difficulty is part of the research question. Honest information about adherence, symptoms, food challenges, and periods outside ketosis helps investigators understand whether ketogenic therapy is feasible in ordinary life. Even hospitalization does not automatically remove someone from the study. The program continues to support the caregiver and helps the participant return to the food plan after coming home.
Families should not decide on their own that they are ineligible. The study is recruiting young people ages 6 through 20 who live primarily in the United States and have a mood disorder such as bipolar disorder, depression, or disruptive mood dysregulation disorder. CMHRC also welcomes interest from families whose child has symptoms that may be consistent with a mood disorder but does not yet have an official diagnosis. Young people already receiving therapy or psychiatric care may participate. The interest survey begins the screening process. It does not guarantee enrollment or obligate the family to participate.
cmhrc.org/keto-long-study/
Questions can be sent directly to keto@cmhrc.org.
Dr David Jehring retweeted
Doctors this a rare but IMPORTANT pattern. Someone with diabetes, weight down, HbA1c up needs action and investigation 👍
Dr David Jehring retweeted
Most health is shaped outside the consultation—in how we eat, move, sleep and live.
Elevate starts with the citizen, not the patient. We developed it pro bono for the Public Health Collaboration because it was the right thing to do.
blackpear.com/news/why-we-do…
#CitizenHealth
Dr David Jehring retweeted
Technology matters only when it helps people deliver better care.
At Black Pear, our “why” is simple: put the right information in the right hands—and help citizens shape their own health.
David Jehring reflects on why we do what we do:
blackpear.com/news/why-we-do…
#HealthTech
Dr David Jehring retweeted
Pre-diabetes matters! It’s a marker for future heart disease. Also it’s easier to sort than T2D itself. In our UK NHS clinic we achieve a93% remission rate by helping people avoid the foods that put blood sugar up Published: nutrition.bmj.com/content/3/…
Dr David Jehring retweeted
Sorting pre-diabetes with diet halved the risk of cardiovascular death over the next 20 years PRE-DIABETES MATTERS because it reflects insulin resistance Our clinic achieves 93% remission of pre-diabetes with a low carb diet thelancet.com/journals/landi… @BenBikmanPhD
Dr David Jehring retweeted
Elevate is in beta, with 200 people shaping a practical approach to metabolic health.
It brings nutrition, activity, sleep, wellbeing and health measures together—helping members spot patterns, build habits and choose what to share with a coach.
More: blackpear.com/news/elevate-p…
Dr David Jehring retweeted
Doctors like me who believe in the idea that the quality of our food is key to health depend on farmers to produce it for us. In Victorian times attention to the food and water supply was key to improving the Nation’s health I believe it still is @NoFarmsNoFoods @PastureForLife @HenryDimbleby @andyburnham
A man who spent thirty years reviewing sports cars has taught this country more about its own food than every minister, union and campaign of the last fifty years combined.
Here is what five series of Clarkson's Farm put in front of the public, and not one line of it is opinion.
- A thousand acres, worked flat out for a year, made a profit of £144. Under forty pence a day.
- By year six the same farm was losing money, weather and prices turning a projected £37,000 into a five grand loss.
- A crop can drown in the field after months of work and take everything with it, and nobody is coming to help.
- The farmer is the only man in the food chain who sells at a price he does not set. The supermarket sets it. He takes it or he takes nothing.
- The council can shut his restaurant, refuse his car park and stop him selling his own food off his own land.
- The subsidy he was told to lean on can be closed overnight, the big estates first through the door, the small farms locked out.
- One outbreak of bovine TB can lock a farm down for months, banned from buying or selling a single cow, through no fault of its own.
- Rear pigs with real care and the butcher's maths can still make them a loss, so the animals go and the loss stays.
- The margins are so thin that a rich man buys farmland not to earn from it but to shelter money that earns elsewhere. The shelter exists precisely because the farming does not.
Now hold that against the story you were sold. Greedy farmers. Subsidised for doing nothing. Wrecking a countryside they are somehow also the custodians of.
There is no profit. That was the reveal. A show that set out to be funny accidentally filmed the slow strangling of the people who feed us, and the country watched it happen and finally understood what its cheap food actually costs.
Clarkson has now admitted the plainest part out loud: it is the television money keeping Diddly Squat alive, and most farms do not have a television show. Britain grows about sixty per cent of its own food and the average farmer is past sixty. That is why both numbers are heading the wrong way.
It took a Lamborghini tractor and a man doing it for a laugh. Fifty years of earnest campaigning could not manage it.
