
Pickles with ice cream, lemons at midnight, a sudden love of a food you used to hate: weird pregnancy cravings are famous, and most of them are harmless. One kind is worth mentioning to your doctor or midwife, though: cravings for things that aren’t food.
Here’s what research says about why cravings happen, which ones are most common, how to enjoy them safely, and when a craving could be a sign of something else.
Key takeaways
- Food cravings are very common in pregnancy: an estimated 50% to 90% of US women have them.
- Cravings often peak in the second trimester and drop after the baby is born.
- Cravings for non-food items like clay, chalk or dirt can be pica, which is more common where anemia is common. Tell your doctor or midwife.
Why do weird pregnancy cravings happen?
Nobody knows for sure. Researchers have tested ideas about hormones, missing nutrients and chemicals in the foods people crave, but a 2014 review found little support for most of them. Culture and everyday habits seem to play a bigger role. Weird pregnancy cravings for food are usually harmless. Cravings for non-food items are different.
How common are pregnancy cravings?
Very. A 2014 review in Frontiers in Psychology estimated that 50% to 90% of US women have food cravings in pregnancy. In one older study of 400 women, 76% had craved at least one food by week 13.
Cravings usually peak in the second trimester and then ease off as the due date gets closer. They tend to drop after birth. Changes in taste and smell are common too: as many as 26% of pregnant women in one study reported altered taste, and in another, 65% noticed changes in smell.
The most common pregnancy cravings
Despite the jokes, most weird pregnancy cravings are for familiar foods. Studies summarized in the 2014 review found women most often craved:
- sweets, such as ice cream and candy
- dairy foods
- starchy foods like bread and pasta
- fruits and vegetables
- fast food
- pickles and pizza, in one survey of pregnant teens
Salty foods were reported less often overall, but the urge for salty food tends to rise later in pregnancy.

Weird pregnancy cravings and food safety
Most cravings are fine in sensible amounts. A few foods need care in pregnancy. This table uses the NHS list of foods to avoid.
| Craving | Is it OK? | What to do |
|---|---|---|
| Soft cheese like brie | Only if cooked | Cook mold-ripened and soft blue cheeses until steaming hot |
| Sushi | Not with raw fish | Choose cooked or vegetable sushi |
| Salami or pepperoni | Only if cooked | Cook cured meats until steaming hot |
| Coffee or cola | In limits | Keep caffeine under 200 mg a day, about 2 cups of instant coffee |
| Liver or pâté | Avoid liver | Liver is very high in vitamin A; keep pâté chilled and in date |
| Herbal tea | In limits | No more than 4 cups a day; avoid teas with liquorice root |
| Clay, chalk, dirt or paper | No | This may be pica. Tell your doctor or midwife |
When cravings aren’t food: pica
MedlinePlus describes pica as a pattern of eating non-food items, such as dirt or paper, for at least a month. It can happen during pregnancy. A 2016 meta-analysis of 70 studies estimated that about 28% of women have pica during pregnancy or after birth, and it was more common where anemia was more common.
MedlinePlus says a lack of nutrients such as iron and zinc may trigger these cravings in some cases. Pica can lead to lead poisoning, infection or a blockage in the stomach or intestines. Pregnant women need 27 mg of iron a day, according to MedlinePlus, so ask your doctor or midwife whether a blood test makes sense.
Do cravings predict a boy or girl?
We found no study showing that cravings predict a baby’s sex. In the 2014 review, it came up only as a belief some women shared online. An ultrasound or a blood test is the way to find out.
How to handle weird pregnancy cravings
- Eat regular meals and snacks so you’re not ravenous.
- Have a small portion of what you crave alongside a meal.
- Keep easy swaps ready, like fruit with yogurt for a sweet craving.
- Check the foods-to-avoid list before giving in to a deli or cheese craving.
- Notice emotional eating. A 2018 study linked frequent cravings for high-fat foods with gaining more weight than recommended.

When to see a doctor or midwife
- You crave or eat things that aren’t food, like clay, chalk, soil or paper.
- You ate something on the foods-to-avoid list and feel unwell, or food poisoning symptoms last more than 48 hours (the NHS advice).
- You’re worried about your weight gain or your eating.
- You have any symptom that worries you. Your doctor or midwife would rather hear from you.
Frequently asked questions
When do pregnancy cravings start?
They can start early. In one study of 400 women, 76% had craved at least one food by week 13 of pregnancy. Cravings usually peak in the second trimester, ease off toward the due date and tend to drop after birth.
Is it normal to crave pickles when pregnant?
Yes. Pickles showed up among common cravings in a survey of pregnant teens, alongside sweets, fruit, fast food, ice cream and pizza. Salty cravings tend to rise later in pregnancy. Enjoy pickles in normal amounts as part of your meals.
Do pregnancy cravings mean you’re missing a nutrient?
Usually not. A 2014 review found little support for the idea that food cravings come from missing nutrients. Pica, the urge to eat non-food items, is different: MedlinePlus says low iron or zinc may trigger it in some cases, so mention it to your doctor or midwife.
Can cravings tell you if it’s a boy or a girl?
We found no study showing that cravings predict a baby’s sex. It’s a popular belief that comes up in pregnancy forums. An ultrasound scan or a blood test is the reliable way to find out.
What is pica in pregnancy?
Pica means eating non-food items, like dirt, clay, chalk or paper, for at least a month. A 2016 meta-analysis estimated it affects about 28% of women during pregnancy or after birth. It can cause lead poisoning, infection or a blockage, so tell your doctor or midwife.
Is it OK to give in to weird pregnancy cravings?
Usually, in sensible amounts. Have a small portion with a meal and keep healthy swaps handy. Avoid foods on the pregnancy avoid list, like raw fish and liver. A 2018 study linked frequent high-fat cravings with gaining more weight than recommended.
How much caffeine is OK when pregnant?
The NHS advises no more than 200 mg of caffeine a day in pregnancy. A cup of instant coffee has about 100 mg, a cup of tea about 75 mg and a can of cola about 40 mg. Filter and coffee shop coffee can contain more.
The bottom line
Weird pregnancy cravings are common and usually harmless, and they often fade after the second trimester. Enjoy them in sensible amounts and check the foods to avoid. If you crave things that aren’t food, like clay or chalk, tell your doctor or midwife, because it could be pica.
Related reading
- Prenatal vitamins: do you need them before pregnancy?
- Discharge before period vs early pregnancy
- Postpartum night sweats
Sources
- Orloff NC, Hormes JM. Pickles and ice cream! Food cravings in pregnancy. Front Psychol, 2014
- Fawcett EJ, et al. A meta-analysis of the worldwide prevalence of pica during pregnancy and the postpartum period. Int J Gynaecol Obstet, 2016
- MedlinePlus (NIH): Pica
- MedlinePlus (NIH): Iron in diet
- NHS: Foods to avoid in pregnancy
- Blau LE, et al. Food craving frequency mediates the relationship between emotional eating and excess weight gain in pregnancy. Eat Behav, 2018

