The Intelligence of the Body
Soaking
Waking the seeds: understanding their defences, and the simple gestures that open them.
Every dry seed is a strongbox: it protects the life it carries with defence molecules, until it finds the right season to sprout. These 'technologies' are not enemies — they are locks. To understand them is to know which simple gesture opens them, so the body can fully benefit from what the plant has stored.
The five defences to know
Each family of compounds has a function — and a key.
1 · Phytates (phytic acid) The mineral lock. The seed stores its iron, zinc, calcium and magnesium here until germination. We open it with acidulated soaking, sprouting and fermentation.
2 · Enzyme inhibitors The seed's brake. They keep its enzymes dormant — and slow ours a little — until it is time to sprout. Soaking followed by a good rinse, then cooking or sprouting, deactivate them.
3 · Lectins & oligosaccharides The legumes' guardians. These proteins and complex sugars protect the seed but can weigh on digestion. A long soak whose water we discard, sufficient cooking, a bay leaf or a strip of kombu, and the meal turns light again.
4 · Oxalates The salt that captures calcium. — abundant in spinach, chard, sorrel and rhubarb, discreet in cacao and some nuts — binds calcium and iron, and matters above all for those prone to stones. Boiling in water we then discard (blanching) removes a good part; varying the greens (rocket, young shoots, kale — gentler) and pairing them with a calcium source does the rest.
5 · Tannins The astringent polyphenols of tea, coffee, cacao, the skin of coloured legumes and some nuts. They are also precious antioxidants: we do not flee them, we tame them. When very present, they slow the absorption of plant iron. Soaking with dehulling, sprouting and fermentation soften them; and a thread of vitamin C — lemon, parsley — throws the iron door wide open again. The tip: keep tea and coffee for between meals, rather than during the iron-rich plate.
How long to soak? The intensity of the defence varies by family — and the gesture adjusts.
| Family | Soak | What it releases |
|---|---|---|
| Legumes (lentils, chickpeas, azuki, beans) | 8–12 h | Phytates, inhibitors and oligosaccharides → light digestion |
| Nuts (almonds, walnuts, hazelnuts, cashews) | 4–8 h | Mineral bioavailability, softer chewing |
| Grains (oats, brown rice) | Overnight | Phytates; quinoa & amaranth: a rinse is enough (saponins) |
| Small seeds (chia, flax) | A few minutes | Self-soaking (gel); sesame, hemp, pumpkin: little phytate |
The gestures that open
Five keys, nearly all free, that turn a defensive seed into an offered one.
Soak In slightly acidulated water (lemon juice, cider vinegar): hydrolyse, minerals are released. Discard the soaking water.
Sprout Simply waking the seed deactivates its defences and multiplies certain nutrients — vitamins C, B, enzymes.
Ferment Miso, tempeh, sourdough: ferments strongly reduce and make minerals bioavailable.
Cook — and discard the water Heat neutralises and inhibitors; blanching then discarding the water removes a good part of the .
Pair with vitamin C A squeeze of lemon over a bowl of lentils or spinach multiplies iron absorption by 3 to 5, and outwits .