Chapter I
Energy
— the inner flame —
« We do not eat — we burn stored light. The body is a solar machine running on two fuels. »
Before all the rest, there is energy — what sets us on our feet and gives us the desire to act. This first chapter descends to where it is made: in the mitochondria, those tiny power plants every cell shelters. We will see the body's two fuels, sugar and fat; the fruits and oils that carry them best; and the simple gestures that decide everything — not what we eat, but what we truly absorb.
The body that burns light
Our energy — the one that makes us rise before dawn with the desire to create, that lets us listen, understand, feel, love — is not a gift of chance. It is the direct result of what we give our cells.
Deep within each of our cells live thousands of small energy plants: the mitochondria. Their only function is to turn what we eat into ATP — the universal currency of biological energy. Every thought, every heartbeat, every blink is funded by an ATP molecule made on the spot.
We do not eat. We burn light, stored by plants, released by our cells.
The two doors: sugar and fat
Our mitochondria can burn two very different types of fuel. Understanding these two paths is understanding the foundations of our energy.
The sugar path — glycolysis. The glucose found in a ripe fruit, in a root, in a grain, is quickly turned into energy. A bright, immediate fuel, perfect for short effort, creativity, spontaneous joy. Coming from a whole fruit, this glucose arrives bound to its fibers and releases on a gentle slope: an energy that holds, with neither spike nor dip.
The fat path — beta-oxidation. When sugar runs scarce, through a fast or a low-carbohydrate meal, the liver converts fats into ketones; living fats (avocado, raw olive oil, walnuts, raw cacao butter) are the finest fuel for this path. A slower fuel to start, but once running: more ATP per molecule, a stability that lasts hours, with no dip.
The most luminous fruits
A ripe fruit picked from the tree is a capsule of solar light. The sugar it holds is not 'sugar' in the industrial sense — it comes bound with fiber, minerals, vitamins, polyphenols. A living sugar that nourishes without trapping.
- Medjool dates — concentrate of slow glucose and fructose, rich in potassium and magnesium. Energy that lasts.
- Fresh figs — delicate sugars, fiber, calcium, iron. For afternoons that call for sweetness.
- Berries (blueberries, raspberries, blackberries) — little sugar, plenty of antioxidants. The light peak without the weight.
- Ripe citrus — sugars and acids in perfect balance, vitamin C that wakes everything up. The solar morning.
- Mango, papaya, passion fruit — when truly ripe, they give everything: tropical energy and enzymes that lighten the whole meal.
The finest oils
If sugar is fast energy, fat is deep energy. But on one absolute condition: that the oil is alive. A raw oil keeps all its living molecules — polyphenols, vitamin E, intact fatty acids. It feeds every cellular membrane, supports the brain, lights the inner flame. Drizzled on the finished dish, these raw oils feed the fat path without losing a single molecule.
| Oil | Profile | Use |
|---|---|---|
| Raw extra-virgin olive | Oleic acid, polyphenols, Mediterranean longevity | Salads, end of cooking, steamed vegetables |
| Raw virgin coconut | MCT (medium-chain triglycerides), fast ketones | Raw tarts, smoothies, matcha |
| First-pressed walnut | Plant omega-3 (alpha-linolenic acid), brain | Mild dressings, winter salads |
| Raw hemp | Ideal omega-3/6 ratio, intense green | Drizzle on bowls, green sauces |
| Raw flax | Very high in omega-3, keep refrigerated | Add at the very last, never heat |
| Raw sesame | Calcium, delicate toasted flavor | Asian sauces, Asian vegetables |
Varying oils means varying the membrane architectures of our cells. Each fatty acid feeds a function.
Optimizing absorption: chewing, choosing quality
Eating a quality food is not enough. The body only absorbs what it can digest. And the engineering of absorption starts in the mouth.
Chew — the most underestimated act
Chewing 30 to 50 times per bite is no macrobiotic whim. It is pure physiology: saliva contains enzymes (amylase, lingual lipase) that pre-digest sugars and fats before they reach the stomach. The longer the chewing, the larger the absorption surface, the less the stomach has to work, the more the intestine receives a ready slurry. Result: better assimilation, less fermentation, less post-meal fatigue, more available energy.
The parasympathetic bonus
Chewing slowly activates the parasympathetic nervous system — the state of rest and digestion. The heart slows, the breath softens, blood flows to the digestive organs. Eating seated, in silence or in joyful conversation, signals to the body that it is fully safe — it opens, digests, assimilates everything. The very same bowl becomes a more nourishing meal, depending on the gesture that surrounds it.
Quality as optimization
A kilo of green-picked supermarket fruit does not nourish as much as 300 g of tree-ripened fruit. A handful of hemp seeds offers a complete protein the body assimilates without detour, where meat makes it travel a long road first. Choosing quality means reducing the amount of food to digest for the same result — and freeing the body from useless work. Less digestion, more energy to live.
The flame is lit. But a flame needs matter to burn and a structure to hold it: the two chapters that follow descend to the source. First proteins — the building blocks of life, and their hidden origin — then minerals — the lattice that gives the body its form and the current its path.
“We burn sunlight — always have”
Virgile Health · chef and researcher
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Frequently asked questions
How does our body produce its energy?
Deep within each of our cells live thousands of mitochondria. They turn what we eat into ATP, the universal currency of biological energy. Every thought, every heartbeat, every blink is funded by an ATP molecule made on the spot — from glucose (sugar path) or fats (fat path).
Which fruits carry the most energy?
Medjool dates (slow glucose and fructose, potassium, magnesium), fresh figs (delicate sugars, calcium, iron), berries (little sugar, abundant antioxidants), ripe citrus (vitamin C that wakes everything), and truly ripe mango, papaya, passion fruit (tropical energy and digestive enzymes). Always choose ripe fruit — soft under thumb pressure, fragrant, heavy.
Why is chewing essential?
Saliva contains enzymes (amylase, lingual lipase) that pre-digest sugars and fats before they reach the stomach. Chewing 30 to 50 times per bite increases the absorption surface, lightens the stomach's work, and activates the parasympathetic nervous system — the state of rest and digestion. Result: better assimilation, less fermentation, more available energy.
What is plant-based ketosis?
It is the activation of the fat path (beta-oxidation), where the liver converts fatty acids into ketones — a slower fuel to start but one that gives more ATP per molecule, with a stability that lasts hours. It settles in when sugar runs scarce, through intermittent fasting or a low-carbohydrate meal, and feeds on raw oils (olive, coconut, walnut, hemp, flax, sesame), avocados and fatty fruits.
The chapters
- — I —
Energy
the inner flame
We do not eat — we burn stored light. The body is a solar machine running on two fuels.
- — II —
Proteins
the brick of life — and its hidden origin
Meat does not contain proteins — it only carries them. The source is the plant.
- — III —
Minerals
the body's lattice
The body is a living geological formation — every mineral becomes an enzyme, a bone, a nerve, a thought.
- — IV —
Ingenious Tips
the gestures that wake the matter
The precious tips that elevate my cooking — soak, cook low, tune the umami, vary the oils, dose the acid, sweeten with plants — and the right tools, to wake the full intelligence of living matter.
- — V —
Recipes
daily practice
The whole collection of living recipes — from everyday bowls to longevity broths, from raw sweets to mineral ferments — where every gesture learned becomes flavor.
- — VI —
Ingredients & Suppliers
the chain of care
I share here my favorite foods and my hidden-gem suppliers — the ones that make plant-based food nourishing and delicious.
- — VII —
Ayurvedic Intelligence
six tastes, one fire
A science three thousand years old described, without a microscope, what biochemistry is rediscovering today — every meal is a complete sensory pharmacology.
- — VIII —
Macrobiotic Intelligence
the Qi of food — Japan & China
The cuisines of East Asia do not nourish matter alone: they set energy in motion. Eating becomes an art of balance — yin and yang, the living Ki, deep umami.
- — IX —
The Intelligence of Biohacking
giving the body back its signals and its common sense
The humblest science adds nothing to us: it gives the body back the ancestral signals it has awaited for three hundred thousand years. The most powerful hack is a return.
- — X —
The Sattvic State
bliss, the joy of the present — to activate and nourish it
Our inner states are not our nature: they are qualities of light. Depending on the day, the same consciousness is limpid, ardent or veiled — and we are the only living being able to tune its own, through food, breath, sleep.
- — XI —
The State of Action
drive, strength, focus — to light it with intelligence
Action is not a matter of willpower alone: it is a chemistry the body mobilises — and one that food can light or extinguish. To understand this system is to better master our states of mind.
- — XII —
Feminine Intelligence
nourishing the rhythms of women's bodies — cycle, transitions, carrying life
Women's bodies live in rhythms — the cycle of the month, the great transitions of a life. None is a problem to correct: they are intelligences to accompany. We treat nothing — we nourish the terrain, so that vitality returns on its own.
- — XIII —
The Technology of Rest and Sleep
the great nightly workshop — and the art of recovery
Sleep is not lost time: it is the body's most active workshop. And rest, chosen, is not an absence — it is a regeneration. We do not force sleep: we invite it, by giving it back its signals.