Why Do People Crave Olives?
Olive cravings turn up constantly — in pregnancy, in hangovers, in the middle of a dull afternoon. Salt is the obvious explanation and only half the story. The real answer is that a cured olive is one of the most engineered flavours in the larder.
It is one of the recurring clichés of pregnancy, sitting alongside pickles and ice cream — and unlike a great many food-craving stories, this one has some sensible mechanisms behind it. A cured olive is a genuinely unusual object: a fruit that has been made savoury, salted, fermented and preserved, delivering several of the flavour signals humans find hardest to ignore, all in one small mouthful with no sugar at all.
Salt, and why it is only the beginning
The obvious driver is sodium. Every method of turning an inedibly bitter olive into food involves salt — brine curing, dry salt curing, and even lye treatment ends in a salted brine for storage. So an olive is, unavoidably, a salt-delivery system. Salt cravings are real and can be pronounced when fluid balance shifts, which is one plausible reason olives come up so often during pregnancy.
But if salt were the whole story, a pinch of table salt would do the job, and it plainly does not. What people describe wanting is specifically the olive: the brine, the sourness, the firm-then-yielding flesh, the faintly bitter finish. That points at something more layered than sodium.
What curing actually builds
A raw olive off the tree is close to inedible — intensely, mouth-drying bitter, thanks to a compound called oleuropein. Every table olive you have ever eaten has been through a process to remove it, and each process leaves a different flavour behind.
In natural brine fermentation, olives sit in salt water for weeks or months while lactic acid bacteria and yeasts go to work. The bitterness leaches out slowly, and in exchange the fruit gains lactic sourness, complexity and savoury depth — the same family of transformations that makes sauerkraut, sourdough and cheese so compelling. Free amino acids build up, and with them glutamate: umami, the fifth taste, the one that makes food taste more like food.
The industrial lye route strips bitterness chemically in hours or days, giving the pale, mild, uniform green olives found in every bar. Faster, cheaper, far less complex. Dry salt curing packs the fruit in salt, drawing out water, concentrating everything and producing the intense, wrinkled, faintly bitter black olives that people either adore or refuse. If you crave one particular olive and find another disappointing, this is usually why — you are craving a cure, not a fruit.
| Cure | How it works | Taste | Craving profile |
|---|---|---|---|
| Natural brine fermentation | Weeks to months in salt water, lactic bacteria and yeasts | Sour, complex, savoury, firm | The most habit-forming : salt plus umami plus acid |
| Lye treatment | Dilute alkali soak for hours or days, then washed and brined | Mild, uniform, gently salty | Easy, snackable, less distinctive |
| Dry salt cure | Packed in salt ; water drawn out over weeks | Intense, concentrated, wrinkled, slightly bitter | Strong and divisive : a small handful goes far |
| Water cure | Repeated soaking and changing of water | Delicate, mild, less salty | Gentle ; the least salt-driven of the four |
The pregnancy question, handled honestly
Cravings during pregnancy are well documented and poorly explained. Popular accounts confidently attribute them to specific nutrient deficiencies, and the evidence for that is far weaker than the confidence suggests. Changes in taste and smell perception, shifts in fluid and sodium balance, hormonal changes and straightforward cultural expectation all plausibly contribute, and disentangling them is difficult.
What is worth saying plainly: olives are a salty food. Table olives carry a substantial amount of sodium — enough that a generous bowlful is a meaningful contribution to a day’s intake — and anyone who has been advised to watch their salt should factor that in. They are otherwise a perfectly reasonable thing to eat: a fruit, with monounsaturated fat, fibre and no sugar. This is general information, not medical advice, and any craving that involves non-food items or that worries you is a conversation for a doctor.
| Why raw olives are bitter | Oleuropein, a phenolic compound in the flesh |
|---|---|
| What removes it | Brine fermentation, lye treatment, dry salt, or repeated water soaking |
| What fermentation adds | Lactic acidity, free amino acids, glutamate — that is, umami |
| Salt content | Substantial in all cured olives ; dry-cured and long-brined tend to be highest |
| Sugar content | Essentially none |
| Fat | Mostly monounsaturated, as in olive oil |
| Why one olive satisfies and another does not | You are craving a specific cure, not the fruit in general |
Feeding the craving well
- Buy naturally fermented olives if you can — the sour, savoury complexity is what you are actually chasing.
- Rinse them if salt is a concern. It costs a little flavour and removes a surprising amount of sodium.
- Try a different cure before deciding you dislike olives. Most people who hate them have only met the lye-treated kind.
- Buy from a jar or tub, not a bar you cannot ask about — the bar is very often the same bulk product decanted.
- Keep them in their brine, covered and cold. An olive left dry in the fridge goes leathery fast.
Olive cravings: common questions
Why do pregnant women crave olives?
Probably a combination of shifts in salt and fluid balance, altered taste and smell perception, and cultural expectation. Confident claims that a craving signals a specific deficiency are not well supported by evidence.
Is craving olives a sign of a mineral deficiency?
There is no good evidence for that. Salt appetite can rise for physiological reasons, but a craving for olives specifically is more readily explained by their combination of salt, acidity and umami.
Are olives high in salt?
Yes. All curing methods involve salt, and cured olives carry a substantial amount of sodium. Rinsing before eating reduces it noticeably.
Why do some olives taste completely different from others?
Because the cure differs as much as the variety does. Lye-treated, naturally fermented, dry-salt-cured and water-cured olives are four quite different foods.
Are olives good for you?
They are a fruit with monounsaturated fat and fibre and essentially no sugar. The main caveat is sodium. This is general information, not medical advice.
Whenever somebody tells me they do not like olives, I ask which ones they have tried, and nine times out of ten the answer is the pale, uniform, lye-treated green ones from a jar — the olive equivalent of judging cheese by a processed slice. Go and buy something naturally fermented, in brine, ideally with the pit still in, and eat three of them slowly. The craving people describe is almost always for that : the sour, salty, savoury, slightly bitter thing that a long fermentation makes. The industrial version delivers the salt and almost none of the rest, which is precisely why a whole jar of it never quite satisfies.
Drawn from standard descriptions of table olive curing methods, the food chemistry of oleuropein and lactic fermentation, and published reviews of pregnancy food cravings.