Pregnancy Cravings: Why They Happen and What They Might Mean

Wanting to eat an entire jar of pickles at 11 pm, or being unable to look at a food you previously loved — pregnancy has a way of making eating feel unfamiliar and unpredictable. Cravings and aversions are among the most commonly reported pregnancy experiences, and they often start early, sometimes before a positive test result is even confirmed.

This article looks at what actually causes cravings, what the most common ones are, when cravings warrant medical attention, and how to satisfy them in a way that supports a healthy pregnancy.

Fact-Checked & Transparent: This article is fact-checked against current CDC, WHO, ACOG, and NHS guidelines. All health information is based on authoritative medical sources. Last verified: June 2026.

⚠️ MEDICAL DISCLAIMER

This article is educational information only. It is NOT a substitute for professional medical advice, diagnosis, or treatment.

Always consult your pediatrician or healthcare provider before making any medical decisions for your baby or child. Every baby is unique, and professional medical guidance is essential.

In case of emergency, call 911 or your local emergency number.

How Common Are Pregnancy Cravings?

Studies suggest that somewhere between 50% and 90% of pregnant people experience food cravings at some point during pregnancy, making them one of the most prevalent pregnancy symptoms. They tend to emerge in the first trimester, often peak during the second, and frequently ease in the third — though the pattern varies considerably between individuals.

Food aversions — strong negative reactions to foods that were previously tolerated or enjoyed — are equally common and are driven by the same underlying mechanisms. Some people experience both simultaneously: craving certain things intensely while finding previously enjoyed foods impossible to eat.

What Causes Pregnancy Cravings?

Despite being so universal, the causes of pregnancy cravings are not fully understood. Several mechanisms are thought to contribute:

Hormonal Changes to Taste and Smell

The most widely supported explanation involves the dramatic hormonal shifts of early pregnancy — particularly the rise in oestrogen and human chorionic gonadotropin (hCG). These hormones affect the sensitivity of taste and smell receptors, which can make previously neutral or pleasant foods taste different, and can make new foods suddenly appealing. This explains why aversions often target the same foods simultaneously — what the body finds newly repellent and what it newly craves are both driven by altered sensory processing.

The nausea of the first trimester may also shape cravings. Foods that are bland, cold, or salty (such as crackers, ice cream, or pickles) are often easier to tolerate when nausea is severe, and the body may develop a preference for them in response.

The Nutritional Deficiency Hypothesis

It is tempting to interpret cravings as the body's way of requesting specific nutrients. This idea has intuitive appeal — craving dairy could suggest calcium needs, craving citrus could suggest vitamin C demand. The evidence for most cravings, however, does not strongly support this theory. Cravings for chocolate, chips, or pizza are not easily explained by nutritional gaps, and controlled studies have not found consistent links between specific cravings and specific deficiencies.

There is one notable exception: cravings for non-food substances (a condition called pica, discussed below) do have a documented association with iron deficiency. For most food cravings, though, nutritional interpretation is speculative rather than evidence-based.

Psychosocial and Cultural Factors

Research suggests that cultural context shapes what pregnant people crave. Studies comparing cravings across cultures show significant differences — chocolate cravings are common in Western countries but much less prevalent in others where chocolate is not a cultural staple. This implies that cravings are not purely physiological and that social expectations, food memories, and cultural norms around "pregnancy foods" play a role.

The Most Common Pregnancy Cravings

Sweet Foods

Sweet cravings are among the most frequently reported. They often emerge alongside nausea in the first trimester — sweet, easily digestible foods tend to sit well when the stomach is unsettled. Simple carbohydrates provide quick energy, which is depleted rapidly when the body is working hard to support early pregnancy development.

Satisfying sweet cravings does not mean avoiding them entirely, but choosing fruit-based options first — fresh fruit, fruit with yogurt, smoothies — provides sweetness alongside fibre, vitamins, and minerals that processed sweet foods lack. Occasional indulgence in chocolate, ice cream, or cake is not harmful in the context of an otherwise nutritious diet. The overall dietary pattern matters far more than individual foods.

Dark chocolate has a meaningfully better nutritional profile than milk or white chocolate — it contains iron, magnesium, and flavonoids — making it a more nourishing option when a chocolate craving strikes.

Salty and Savoury Foods

Cravings for salt, pickles, olives, crisps, and salty snacks are also extremely common. A desire for sodium is partly explained by the significant increase in blood volume during pregnancy — the body needs more sodium to maintain the expanded fluid volume. Nausea management may also be a factor, as salty foods are often well tolerated even when other foods are not.

Satisfying salty cravings with foods that have broader nutritional value — olives (rich in healthy fats), feta cheese (a protein and calcium source), nuts (protein, healthy fats, magnesium), or whole grain crackers rather than heavily processed snacks — makes these cravings work harder nutritionally.

Pickles and Vinegary Foods

Pickles and other acidic, vinegary foods appear frequently in pregnancy craving lists across many cultures. The sharp, sour flavour may be appealing partly because it cuts through nausea and stimulates saliva production. There is no nutritional deficiency strongly associated with pickle cravings. They are safe to eat in moderation, though high-sodium varieties contribute significantly to daily salt intake.

Citrus Fruits

Craving oranges, lemons, or grapefruit during pregnancy may partly reflect the body's need for vitamin C, which supports iron absorption and immune function. It may also be that the sharp taste of citrus is appealing when the mouth feels altered by pregnancy hormones. Citrus fruits are nutritionally valuable and generally very safe in pregnancy.

Ice and Cold Drinks

Craving ice specifically — rather than cold drinks generally — can be a sign of iron-deficiency anaemia, and is one of the cravings that warrants clinical attention. This is discussed further in the pica section below.

Dairy and Ice Cream

Cravings for milk, cheese, yogurt, and ice cream are among the most common reported during pregnancy. Calcium needs increase during pregnancy and the body may respond with preferences for calcium-rich foods. Dairy also provides protein. Low-fat dairy options are widely available, and full-fat versions are not harmful in reasonable quantities. Avoid soft, unpasteurised, or mould-ripened cheeses (such as brie, camembert, and blue cheese) regardless of craving — these carry a small but real risk of Listeria infection, which can be serious in pregnancy.

Food Aversions: The Other Side of Cravings

Food aversions — sudden strong dislike of foods that were previously enjoyed — are equally common and equally driven by hormonal changes to taste and smell. Meat, fish, eggs, garlic, and coffee are frequently cited as aversion triggers. For some people, the smell of cooking food is enough to trigger nausea.

Aversions can be nutritionally significant if they target key food groups. If you develop a strong aversion to meat or fish (both protein and iron sources), ensure you are meeting those nutritional needs through eggs, legumes, nuts, seeds, or dairy. If multiple food groups become difficult to eat, a dietitian referral through your midwife can help ensure nutritional needs are being met.

What Is Pica?

Pica is the persistent craving for and consumption of non-food substances — things the body cannot digest and that provide no nutritional value. In pregnancy, commonly reported pica cravings include:

• Soil or clay (sometimes called geophagia)
• Coal or charcoal
• Chalk
• Plaster or sand
• Laundry starch
• Ice (in large amounts specifically)

Pica is associated with iron-deficiency anaemia. When iron stores are depleted, some people experience an urge to consume these substances, and treating the iron deficiency often resolves the craving. However, pica can also occur without identifiable deficiency and may have cultural and psychological dimensions.

It is important to tell your midwife if you are experiencing pica. Some non-food substances are directly harmful — consuming soil, coal, or chalk can expose you to toxins, heavy metals, or parasites, and can interfere with nutrient absorption. Laundry starch and some forms of clay can be particularly harmful in large quantities.

Even if you feel embarrassed about the craving, your midwife will have encountered it before. Blood tests to check iron levels and, if necessary, supplementation or dietary changes can address the underlying cause. This is not something to manage alone or in silence.

Foods to Avoid During Pregnancy Regardless of Craving

Pregnancy changes the immune system in ways that increase vulnerability to certain foodborne pathogens. The NHS advises avoiding the following regardless of cravings:

Liver and liver products: Liver contains very high levels of vitamin A (retinol), which in excess can harm fetal development. Liver pâté and supplements containing retinol should be avoided.

Raw or undercooked meat and poultry: Risk of Salmonella, Campylobacter, E. coli, and Toxoplasma. Ensure all meat is cooked until the juices run clear.

Raw eggs and products containing raw egg: Raw egg carries Salmonella risk. NHS guidance now permits lion-stamped eggs raw or lightly cooked, as these are produced under a Salmonella control scheme. Other eggs should be cooked through.

Raw shellfish and raw fish (sushi): Risk of Listeria, Vibrio, and other pathogens. Cooked shellfish and fully cooked fish are safe.

Unpasteurised dairy and mould-ripened soft cheeses: Brie, camembert, and blue cheeses carry Listeria risk. Hard cheeses and pasteurised soft cheeses (such as cottage cheese, cream cheese, and ricotta) are safe.

High-mercury fish: Shark, swordfish, and marlin should be avoided. Tuna should be limited to no more than two fresh tuna steaks or four medium-sized cans per week due to mercury content.

Alcohol: The NHS advises avoiding alcohol entirely during pregnancy. There is no established safe level.

If a craving targets any of the foods on this list, speak with your midwife about safe alternatives rather than satisfying it directly.

Is Indulging Cravings Harmful?

For most food cravings, occasional indulgence in otherwise-avoided foods is not harmful when the overall diet is nutritious and balanced. A serving of chips, a chocolate bar, or a bowl of ice cream will not harm a pregnancy when the wider dietary pattern includes adequate protein, iron, calcium, folate, and other essential nutrients.

The NHS and ACOG both emphasise that overall dietary quality matters far more than individual foods consumed on any given day. Deprivation and restriction that makes eating miserable are counterproductive — managing pregnancy nutrition is a long game, and an approach that is sustainable across weeks and months is more valuable than rigid avoidance.

If you find that cravings are leading you to eat very large amounts of a particular food, or to make dietary choices that feel out of control, speak with your midwife. This may be worth discussing with a dietitian, and in some cases may be connected to broader emotional wellbeing that deserves attention.

Frequently Asked Questions

Do pregnancy cravings mean my body needs something specific?

For most cravings, the evidence does not support a direct link between the craving and a nutritional need. Chocolate cravings, for example, are common but are not reliably associated with magnesium deficiency. The best-established link is between pica (cravings for non-food substances) and iron-deficiency anaemia. If you are craving non-food items, have your iron levels checked.

Are food aversions as significant as cravings?

Yes. Food aversions are driven by the same hormonal changes and can be equally disruptive to nutrition, particularly if they target nutrient-rich foods such as meat, fish, or eggs. If aversions are making it difficult to meet nutritional needs, a dietitian can help find alternative sources of key nutrients.

Can I eat chocolate during pregnancy?

Yes. Chocolate — particularly dark chocolate — can be part of a healthy pregnancy diet in moderation. High-caffeine content is the only consideration: dark chocolate contains more caffeine than milk chocolate, and the NHS recommends keeping total caffeine intake below 200 mg per day during pregnancy. One or two squares of dark chocolate do not approach this limit.

Is it safe to eat pickles during pregnancy?

Pickles are safe during pregnancy in moderation. High-sodium pickles contribute significantly to daily salt intake, so very frequent consumption in large amounts is worth moderating. Otherwise, there is no safety concern with commercially produced pickles.

What should I do if I'm craving non-food substances?

Tell your midwife as soon as possible. Pica in pregnancy is associated with iron deficiency and can have direct health risks depending on what is being consumed. Your midwife will arrange blood tests and discuss safe treatment. Pica is more common than many people realise, and it will not surprise your care team.

Do cravings predict the baby's sex?

No. The popular belief that craving sweet foods indicates a girl and savoury foods a boy is not supported by evidence. Cravings vary enormously between individuals and are driven by hormonal changes and individual factors, not fetal sex.

Key Takeaways

• Between 50% and 90% of pregnant people experience food cravings; the most common are sweet foods, salty or savoury foods, citrus, dairy, and ice
• The leading explanation for cravings is hormonal changes to taste and smell sensitivity, rather than nutritional deficiency for most foods
• Pica — craving non-food substances such as soil, chalk, or ice in excess — is associated with iron-deficiency anaemia and should always be discussed with a midwife
• Certain foods must be avoided in pregnancy regardless of cravings: liver, raw shellfish, unpasteurised cheeses, raw eggs (other than lion-marked), high-mercury fish, and alcohol
• Occasional indulgence in craved foods is not harmful when the overall diet is nutritious — overall dietary pattern matters more than any individual food choice
• Food aversions are as common as cravings and are driven by the same hormonal changes; if aversions are affecting nutritional intake significantly, ask for a dietitian referral

📋 SOURCES & FACT-CHECKING

This article is compiled and verified against these authoritative sources: - CDC (Centers for Disease Control & Prevention) - WHO (World Health Organization) - ACOG (American College of Obstetricians and Gynecologists) - NHS (National Health Service) - AAP (American Academy of Pediatrics)

Last verified: June 2026

Educational content only. Always consult your pediatrician for medical decisions.

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