The Body Craves Meat and Sugar: Why Vegetables Feel Like Penance

The body doesn't want vegetables: it wants fat, meat, and sugar

A scene repeats in millions of kitchens: a plate of chard sits there, met with a grimace and the feeling of serving a sentence. The opening question is simple yet uncomfortable: if the human body is so wise, why does it never ask for broccoli but always for a steak? The short answer is that instinct ignores nutritional pyramids. The long answer spans hundreds of comments, touching on evolution, the food industry, and religious guilt.

The starting point is a provocative thesis: vegetables and fruits are eaten out of obligation, not desire. This opens a map of views ranging from biological determinism to childhood memories.

Why the human body doesn't want vegetables but wants meat or sugar?

The most repeated argument is evolutionary. It holds that human diet is fundamentally carnivorous and that vegetables were always filler food, eaten when no prey was available to bite into. In this line, some recall that hunter-gatherer tribes eat lots of meat and that their diet is basically protein. Fruit and vegetables, by contrast, are presented as part of the human diet always, but not as the center of appetite.

Against this appears the obvious objection: if the body didn't want vegetables, cows would be in trouble. The joke hides a more serious debate about what "asking" means and how much of that instinct is conditioned by the environment. The body asks for what it knows, and what it knows is what it has been given.

Sugar as a drug: fruit causes lethargy

One of the points where interventions most agree is on the effect of sugar. It is described as a substance with immense power over the organism, and fruit is perceived as something that causes brutal lethargy to eat. Vegetables, even more. It is not that they are rejected for taste: it is that they do not produce that feeling of fullness after eating, something that fat and protein do achieve.

Here enters the argument of appetizing food. It compares returning from a ten-kilometer walk and being served a salad of only vegetables versus a steak, a pizza, or a roasted chicken. The conclusion is that animal fat wins, and it would win even if it were of poor quality. The question lingering is whether this proves anything about human nature or only about what the industry has designed for us to desire.

The spoiled body hypothesis

There is a current that turns the argument around: if your body doesn't ask for raw fruit and vegetables, it is spoiled. The simile is powerful. Just as an alcoholic asks for alcohol and a cocaine user asks for cocaine, an organism saturated with ultra-processed food asks for more of the same. The proposed test is simple: place in front of a baby a peeled carrot, an apple, spaghetti, and a steak tartar, and see what it chooses.

The counter-argument comes quickly: the body is wise, and after ten days of unrestricted American-style food, all it asks for is green, fruit, and broth to filter fat and sugars. That is, the instinct recalibrates when given a respite. The problem would not be the instinct, but the noise that drowns it.

Vegetables as penance and religious heritage

One of the sharpest readings of the matter points out that systems and religions have always been obsessed with people not enjoying food. Guilt, antiestéticar of disease, and sarracena of the plate would be tools of control. In this framework, mandatory vegetables function as penance: something eaten to atone, not to enjoy. The comparison with religious people who self-flagellate is not casual.

This adds to distrust of official dietary advice. It is argued that supermarket vegetables are garbage, that meat is too but at least tastes like something, and that any recommendation from above should pass through the filter of suspicion. The modern food industry appears as the villain that twisted the relationship with food.

Summer, gazpacho, and the exception that proves the rule

Not everything is rejection. Several interventions recognize that there are contexts where the body does want vegetables. When ambient heat is high, salads, gazpachos, and watermelon go down well. Some also confess a weakness for raw vegetables: cauliflower, cabbage, lettuce, carrot, dressed tomato, or hearts of palm with oil. The difference lies in preparation. Boiled vegetables are rejected with an olfactory argument hard to refute; raw and fresh vegetables are defended with enthusiasm.

The case of breaded cauliflower with béchamel and crunchiness is cited as an example that the problem is not the vegetable, but how it is cooked. And there appears another variable: time. Some admit they would love to eat legumes and vegetables, but end up having a sandwich because cooking takes its time.

The bottom line: instinct or custom?

The discussion drifts toward a broader question: how much of what we call instinct is actually habit. It compares with water: who does not drink water and only takes sodas ends up with a body that no longer asks for water. The palate is educated, and also deformed. Fruit and vegetables have always been eaten because they do not run, and meat is eaten because it is hunted. The hierarchy of desire has more to do with availability than with biology.

At the other extreme, it is defended that the human digestive system resembles that of a carnivore more than that of a primate, with arguments about stomach pH and the ability to transform cellulose. The discussion remains there, unresolved, because each side has its data and source.

What is eaten and what is said is eaten

The thread also leaves a portrait of eating Spain. Some admit they are passionate about fruit and it is their only source of sugar. Some drool over a cauliflower. Some only ask for very specific raw things, and the rest of the time, a sirloin, a chorizo sandwich, and a cold beer. And some maintain that those whose bodies do not ask for raw fruit and vegetables are spoiled.

The only conclusion that holds is that there is no single answer. The body asks for what it has been taught to ask for, and what it has been taught depends on the wallet, time, climate, and guilt. If instinct were as infallible as said, there would be no debate. And there is, with two hundred fifty-eight messages.

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Is appetite a reliable compass or a mechanism the industry has learned to manipulate?