Diet can both make you sick and make you well. Hopefully that is not a controversial position.

For certain conditions, dietary guidelines that deviate widely from the usual recommendations are not only common but well-established and recommended. Metabolic state in which the body burns fat rather than glucose for fuel. Characterised by a measurable level of ketone bodies in the blood. → more nutrition, for example, has a remarkably positive effect on epilepsy in many cases - better than all known medications or medical procedures.

For nearly everyone else, though, the direction is predominantly one: there is exactly one flavor of dietary recommendations, and if you want to get (or stay) healthy, there is only one answer: More of the same.

In another article here I have already explained that the dietary guidelines of the Deutsche Gesellschaft für Ernährung - German Nutritional Society, a largely government funded NGO, designated as appointed authority on nutritional matters are made exclusively for healthy people in a specific age group with a specific dietary pattern - yet these guidelines are applied more or less to every nutrition-related situation. And this despite the fact that they are explicitly not intended for sick people.

As I noted: only 30% of the DGE’s dietary guidelines concern the (unspecified) reduction of disease burden - never their minimization or elimination, let alone health itself.

Articles about the DGE

Image of the retina
Here's looking at you...

A look inside: what I can’t measure - and why I don’t consider myself clever enough for a vegan diet

A pizza and a cola on a table
Nobody's Taking Away Your Pizza

Ordering a Cola: normal. Ordering butter instead of potatoes: justify yourself and have the emergency number ready. How watered-down dietary guidelines became societal consensus.

A board with various vegetables and two eggs
What Does the DGE Recommend? Chapter 2

A dissection of the scientific foundations of the DGE guidelines - because even though I ignore them, I refuse to be accused of being anti-science.

A board with various vegetables and two eggs
What Does the DGE Recommend? Chapter 1

Behind the DGE dietary guidelines: scientific foundations and the choice of goals and solution spaces. How are the recommendations weighted?

A globe on a table. In front of it, a book with a syringe and some tablets
Planetary Health Diet - The Great Misunderstanding

The one aspect most commonly cited in favor of the ‘Planetary Health Diet’ is an aspect the associated report explicitly did not examine.

A board with various vegetables and two eggs
DGE Guidelines. A Contradiction?

Why the recommendations of the German Nutrition Society don’t actually contradict my completely different personal experience

Fuel gauge with an overly large 'reserve' area. The by far smallest part makes up the actual fuel meter
The Preferred Fuel

The body’s preference: Which fuel does it like to burn most? (The answer will surprise you 😉)

Two feet on a digital bathroom scale
"Watch Your Weight"

A rant: why ‘watch your weight’ as advice doesn’t actually help

And yet there are plenty of alternative dietary approaches that are rarely even brought up - for example, because patients are assumed to lack the willpower, because the options are simply unknown, or because they are not part of standard treatment protocols - even though many others have had very good results with them.

Craftsmanship

I like to compare this to a toolbox stocked with a lot of tools - most of them still in their original packaging, untouched, while only the hammer gets regular use. Fittingly, the hammer is a tool that always has some effect (1)

In any skilled trade, the standard approach before a repair is to take a close look at what is actually broken - and then choose the right tool for the job at hand. No tradesperson would show up to a job with nothing but a hammer.

Maslow (et al)

The principle behind this is actually well known under its own name, as the Law of the Instrument (also “Maslow’s Hammer”) (2):

If your only tool is a hammer, you see a nail in every problem

Real Alternatives, Different Tools

But there are organisations that have recognised there are often more suitable tools than the hammer, and that publish the corresponding studies and case reports. Ketogenic nutrition in particular has by now been successfully applied to a great many further conditions and symptoms. And there is hardly a dietary approach further removed from current guidelines.

It is no surprise that this kind of research is done on limited budgets: there is no large revenue stream in nutrition that can be tapped the way it can with pharmaceuticals. Study sizes will rarely match those seen in drug trials.

But from those impressive lists alone - covering a large share of the most common non-communicable “lifestyle diseases” - it is clear that there are genuinely promising approaches worth picking up other tools for, at least on a trial basis.

Everyone has to eat, whether sick or well. I think it is important to inform patients that others have already helped themselves significantly through dietary changes - and those familiar with the examples from these two organisations know that we are not only talking about mere partial symptom relief, but about freedom from symptoms in conditions conventionally considered chronic and progressive and partially untreatable.

Whether patients then manage to stick with it is up to them. I suspect that the prospect of a life free of both medication and symptoms (!) is worth at least an attempt for more than a few people.

Conclusion

It turns out: the problem is far from always being just a nail. Adapting from Maslow and the various other attributed authors of the Law of the Instrument:

If all you have is a hammer, make sure that your problem isn’t a thumb

More about ketosis

Image of the retina
Here's looking at you...

A look inside: what I can’t measure - and why I don’t consider myself clever enough for a vegan diet

A child sits at a desk drawing; on the wall above hangs a board with the chalk lettering 'We can do hard things'
Asking a Lot, Trusting a Little: The Nutrition Doc and the Informed Patient

If something is hard, that is a sign it is worth doing👍. Or that it is not worth even considering👎. It depends.

Two chopsticks marked with a ruler scale, resting across a steaming bowl of ramen
Eating with Two Yardsticks: The Nutrition Doc's Burden of Proof

Dr Riedl earns both praise and criticism for a single podcast episode: giving up wheat even without coeliac disease👍, double standards on nutrition studies👎.

an abstract ringing alarm clock recreated from onion rings, mushrooms, basil leaves and salt
Food Noise

The popular weight-loss injection promises less ‘food noise’ - and lists side effects. A ketogenic diet does the same, and comes with side benefits.

A small child at the bottom of a very large stone staircase
Who should follow the advice here?

A collection of article links on this site, as a topic-based, easy entry point.

Fried egg and bacon in a pan
But Your Cholesterol, Your Heart...

People who hear about a ketogenic diet often wonder whether that much fat can be healthy. The mindset is widespread, but also outdated: the science has moved on.

Frontal picture of a swimmer, swimming butterfly
Out of Breath? Just Eat Something Different!

If you get winded quickly - or just want to last longer - the right diet can extend your endurance by roughly 30%

Cutlery lying horizontal: a knife above, a fork below. Between them, the words 'KETO DIET' spelled out in small letter tiles.
Nutrition Doc: Cognitive Dissonance and Ignorance of Ketogenic Nutrition

In an episode of the Ernährungsdocs podcast, Germany’s most prominent nutritional physician demonstrates shocking ignorance of and attitude towards ketogenic nutrition

Ketogenic Diet – The BARMER's Take

Thoroughly researched, thoroughly cited – and the counter-argument built right in. You just have to read the BARMER’s keto article carefully.

Fuel gauge with an overly large 'reserve' area. The by far smallest part makes up the actual fuel meter
The Preferred Fuel

The body’s preference: Which fuel does it like to burn most? (The answer will surprise you 😉)

A man in swim trunks on the beach, looking out at the ocean. Photographed from behind — we're looking at the ocean too
Sunburn and UV

A surprising side effect of switching to a ketogenic diet: a new built-in sun protection factor

  1. That is not a statement about whether that effect is positive or negative
  2. Wikipedia: The Law of the Instrument. As Wikipedia explains, the principle cannot be attributed to any single author - not even Maslow.