Ketosis Is a Treatment, Not a Religion
by Laurent Glatz – for Athletic Carnivore
Ketosis becomes intellectually dangerous the moment it stops being a tool and turns into an identity. The human body does not need to belong to a dietary camp. It needs a metabolic terrain consistent with its actual condition. This is the fundamental difference between using ketosis as a precise strategy and defending it as a belief.
The misunderstanding stems from a double excess. On one side, some present the ketogenic diet as a universal, almost magical solution capable of correcting all fatigue, disorders, inflammation, and weight issues. On the other, some caricature it as a dangerous fad as soon as it steps outside the classic medical framework. Both positions miss the same point: ketosis is neither inherently good nor bad. Its relevance depends entirely on the terrain.
Nutritional ketosis corresponds to a state in which the body significantly reduces its use of dietary glucose and increases ketone body production by the liver. This involves a drop in insulin, an increase in lipolysis, greater utilization of fatty acids, and a gradual adaptation of certain tissues to this new energy flow. It is not merely an “absence of carbohydrates.” It is a hormonal signaling shift.
In certain situations, this shift is profoundly beneficial. The most historically solid example remains pharmacoresistant epilepsy, where the ketogenic diet has been used for over a century. The exact mechanism is complex but involves neuronal excitability, GABA, ion channels, brain energy stability, and likely inflammation. Here, ketosis is not a preference; it becomes a metabolic intervention.
It can also make sense in some severe forms of insulin resistance. When insulin remains chronically elevated, blood sugar drifts, the liver produces excessive triglycerides, and visceral fat accumulates, drastically reducing carbohydrates can calm insulin demand. The body gradually exits a permanent storage mode. Lipolysis becomes possible again. Hunger stabilizes. Energy becomes less dependent on repeated food intake.
But a useful strategy in a diseased terrain does not automatically become a mandate in a healthy one. This is where the religious trap appears. Some people start measuring their biological worth by their ketone levels. They panic at the slightest exit from ketosis, as if the body had committed a moral fault. Yet human physiology is flexible. It knows how to use fats, ketones, and glucose. True metabolic health is not being stuck in a single pathway. It is being able to switch between them without chaos.
The carnivore logic helps clarify this question. A well-formulated carnivore diet is often naturally low in carbohydrates, sometimes ketogenic, but its power is not limited to ketones. It relies on animal nutritional density, complete proteins, satiety, elimination of ultra-processed foods, glycemic stability, heme iron, B12, zinc, creatine, choline, and animal fats. Reducing this approach to “being in ketosis” is an impoverished reading.
Cortisol also reminds us that ketosis is not always neutral. In a stressed, underfed, insomniac, very lean, or overtrained person, too rigid carbohydrate restriction can become an additional stress. The liver must maintain blood sugar, electrolytes must be balanced, sleep must remain solid, and energy intake must be sufficient. Otherwise, the metabolic tool becomes a nervous constraint.
In some women, especially when the cycle is fragile or the thyroid responds poorly, prolonged ketosis must be interpreted with nuance. This is not a general prohibition. It is a biological reminder: the female body reads energy availability with great precision. If the signal received is “lack,” even on a clean diet, it may reduce certain functions deemed non-priority.
Athletes present another case. For low-intensity endurance, ketosis can be remarkable. For strength, sprints, training volume, or repeated high-intensity efforts, it can limit energy throughput. This does not mean it is useless. It means it sometimes needs to be periodized, adapted, or replaced by a broader carnivore strategy that does not confuse purity with performance.
The real question is therefore not: “Should you stay in ketosis?” The real question is: “What problem are you trying to fix?” If the problem is epilepsy, severe insulin resistance, food compulsions, obesity with hyperphagia, or major glycemic instability, ketosis can become a powerful lever. If the problem is simply a quest for dietary identity, it can become a prison.
A treatment is measured by its effects. A religion defends itself even when it no longer works. Biology, however, demands concrete signs: sleep, strength, mood, hunger, waist circumference, digestion, recovery, blood sugar, triglycerides, daily energy. If these markers improve, the tool is probably relevant. If they worsen, ketone numbers save nothing.
Ketosis deserves respect because it can be powerful. It also deserves to be put in its place because it is not all of human nutrition. The body does not ask for a label. It asks for a strategy.
The final question is simple: are you using ketosis to repair a real terrain, or are you protecting it as a belief even when your body tells you otherwise?
#Ketosis #Metabolism #Carnivore #Insulin #Epilepsy #MetabolicFlexibility #TherapeuticNutrition #Cortisol #MetabolicHealth #AthleticCarnivore
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