Nutmeg aphrodisiac: sexy spice or risky habit?

Nutmeg is the seed of Myristica fragrans, an evergreen tree that originally grew only on a handful of tiny islands in eastern Indonesia, the Banda Islands. When the fruit splits open, it reveals a dark seed wrapped in a lacy red covering. That red lace is dried to make mace, and the seed inside becomes nutmeg.

Most of us know it as a Christmas spice, grated over eggnog, mulled wine, custard and rice pudding. Its smell is sweet, woody and a little peppery, the kind of scent that makes a room feel warm and cosy. That warmth is a big part of why nutmeg ended up on so many lists of aphrodisiacs.

But nutmeg has a twist most love foods don't. In small amounts it's a lovely seasoning. In large amounts it's a poison. Any honest look at nutmeg as an aphrodisiac has to start there, because the line between sexy and sick is surprisingly close.

Here's the quick version before we get into the detail. The nutmeg aphrodisiac idea is mostly folklore, the research is in rats, and the safe dose is tiny. Used as a seasoning, nutmeg is a lovely addition to a romantic meal. Used as a supplement, it's a gamble you're very likely to lose.

For centuries nutmeg was one of the most valuable things on earth. Arab traders carried it west, and in medieval Europe it was worth more than its weight in gold. Rich households used it to flavour food, scent rooms and treat all sorts of complaints. Owning nutmeg was a flex.

In the 1600s the Dutch fought brutally to control the Banda Islands and the spice trade, and the local people suffered terribly. The English held one small island, Run, and in the treaty of 1667 they gave it up while the Dutch confirmed English control of a colony in North America that included Manhattan. That's how much this little seed was worth.

With all that money came stories. Nutmeg was said to warm the blood, stir passion and even work as a love charm. A spice that expensive and that exotic was always going to pick up a saucy reputation.

Some historians also point out that spices like nutmeg were used to mask the smell of food and bodies in an age before fridges and daily showers. Anything that made a room, a meal or a lover smell sweeter was bound to be linked with romance. The nutmeg aphrodisiac idea grew from that mix of luxury, scent and wishful thinking.

In Ayurvedic and Unani medicine from South Asia, and in traditional Arabic medicine, nutmeg was used as a warming tonic and to treat problems such as premature ejaculation and low desire. It was often stirred into warm milk, honey or sweets and taken in tiny amounts.

Some accounts describe women in parts of Asia and the Middle East chewing nutmeg as a love charm, and European folk recipes slipped it into love potions. Like most aphrodisiac stories, these are hard to trace to a single source, but the reputation was everywhere.

Old European herbals also used nutmeg for digestion, bad breath and sleeplessness. In many traditions the line between food, medicine and love charm was blurry. A spice that warmed the stomach was easily imagined to warm the heart, and the bed, as well. Part of the nutmeg aphrodisiac appeal was always sensory: warm, sweet spices make food feel indulgent, and indulgence and sex are close cousins.

If you're hoping for proven nutmeg benefits sexually, the science is thin. A few studies in male rats found that an alcohol-based extract of nutmeg increased sexual behaviour, such as how often and how quickly the animals tried to mate. The researchers suggested it might act on the nervous system.

That's interesting, but rats aren't people, and the doses used don't translate neatly into a sprinkle on your porridge. There are no proper human trials showing that nutmeg increases desire, makes you wetter or harder, or improves sexual function in any measurable way.

There's a red flag in the rat research too. The compounds that might explain those results are the same ones that cause poisoning at higher doses. When the only way to get a strong effect is to take a risky amount, the plant is better enjoyed as food than used as a sex supplement.

So what's left? The scent, the warmth and the way a spiced drink makes an evening feel special. That's a genuine effect on mood, and mood matters for arousal. It just isn't the dramatic nutmeg aphrodisiac effect the old legends promised.

In traditional medicine, nutmeg for men was mostly about lasting longer. It turns up in old remedies for premature ejaculation, often mixed with other herbs. Some modern 'herbal stamina' products still include it, usually in blends where it's impossible to know how much you're getting.

There's no good human evidence that nutmeg helps you last longer or get harder. If coming too quickly or keeping an erection is bothering you, there are things that actually work. Techniques like stop-start, where you pause just before the point of no return, can build control over a few weeks. A GP or sexual health clinic can also talk you through proven treatments.

Be wary of capsules or powders that promise big results from nutmeg. You can't easily tell the dose, and stacking them with other supplements, alcohol or drugs makes the risks harder to predict.

Nutmeg contains myristicin and elemicin, compounds that affect the brain in large doses. Nutmeg toxicity has been reported from around 5 grams, which is roughly two teaspoons of ground nutmeg. Some people take big amounts hoping for a stronger aphrodisiac effect. It almost always goes badly.

Symptoms usually start several hours after eating it, which is part of the danger, because people sometimes take more while they wait. Poisoning can last a day or two and often includes:

• nausea, vomiting and stomach pain
• a racing heart and palpitations
• dizziness, dry mouth and flushing
• anxiety, confusion or a sense of doom
• hallucinations and feeling cut off from reality

Serious problems are rare, but people with heart conditions and children are at greater risk. If someone has taken too much, don't let them sleep it off alone. Call NHS 111 or a poison centre for advice, and 999 for chest pain, a very fast heartbeat, severe confusion or trouble staying awake. Be honest about how much and when. Nobody will judge you.

You'll find posts online describing a nutmeg high as a cheap, legal buzz. The reality is grim. The amounts needed are the same amounts that cause poisoning, so what people get is usually hours of nausea, a pounding heart, a dry mouth and a foggy, anxious, detached feeling that can drag on into the next day.

Because it kicks in so slowly and lasts so long, people often can't tell when it will end, and many describe it as one of the worst experiences they've had. It's also hard to judge the dose, since the strength of nutmeg varies from jar to jar.

It's the least sexy idea imaginable. You won't feel horny. You'll feel sick, and anyone you're with will spend the night looking after you. If you want to feel loose and turned on, a relaxed evening, a massage and a good partner beat a spoonful of spice every time.

The amounts used in cooking are safe for almost everyone. A recipe that serves four might use a quarter to half a teaspoon, so each person gets only a small fraction of that. A grating over a drink or dessert is well within safe limits.

So how much nutmeg is safe? Think pinches, not spoonfuls. Trouble only starts when people deliberately eat far more than any recipe would call for. The simplest rule is this: use it as a seasoning, never as a supplement. Whole nutmegs keep their flavour far longer than pre-ground, and a few passes on a fine grater are all you need.

If you're pregnant, stick to normal cooking amounts and avoid large doses, supplements and concentrated oils. Keep whole nutmegs and jars out of reach of children, who are more vulnerable to poisoning.

Where nutmeg really shines is atmosphere. Warm spices are strongly tied to comfort, and comfort helps a lot of people relax enough to want closeness. Scent is linked to memory and emotion, so a smell you both connect with cosy evenings can slowly become a cue for getting intimate.

• grate a little over warm milk and honey and share it in bed
• make mulled wine or spiced cider for a cold night in
• bake something with nutmeg and cinnamon so the house smells inviting
• whip up a vanilla and nutmeg custard and feed it to each other

Nutmeg essential oil sometimes turns up in massage blends, but it can irritate skin. Use only well-diluted, ready-made products, and never put nutmeg oil anywhere near the genitals. Think of the nutmeg aphrodisiac as one ingredient in a sensual evening, not the main event. Enjoy the warmth, keep the doses tiny and let the rest come from the two of you.

If you came looking for a nutmeg aphrodisiac because your sex drive has gone quiet, it's worth looking at the bigger picture. Low desire is very common and usually has ordinary causes: stress, poor sleep, alcohol, some medicines, hormone changes, pain during sex or feeling disconnected from your partner. A spice can't touch most of those.

Some things reliably help. Getting enough sleep, moving your body, drinking less and making real time for each other all make a difference. So does talking about what turns you on, what you'd like more of and what you'd like to try. A partner who knows what you want is a better aphrodisiac than anything in your kitchen cupboard.

If the problem is erections, coming too fast or sex that hurts, see a GP or sexual health clinic. These are everyday issues for them and there are treatments that work. Keep nutmeg for the custard and the mulled wine, where it belongs.