Are pregnancy cravings really a reliable way to tell if I'm having a boy?

Are pregnancy cravings really a reliable way to tell if I’m having a boy?

Many parents-to-be track every flutter, bump and craving in hopes of glimpsing their baby’s sex before an ultrasound. You may have heard that craving salty, meaty or spicy foods means “food cravings when pregnant with a boy,” while sweets point to a girl. But does science back this up? Let’s dig into the facts, separate myth from reality and help you focus on what really matters: a healthy pregnancy.

What are pregnancy cravings?

Pregnancy cravings are strong desires to eat specific foods. They affect up to 75% of pregnant people (American Pregnancy Association). Cravings can range from chocolate and fruit to pickles, ice cream or even non-food items (pica). Most often, they occur in the second and third trimesters, when hormonal changes peak.

The old-wives’ tale: cravings predict your baby’s sex

Across cultures, family lore links certain cravings to baby boys or girls. Common beliefs include:

• Salt, meat and spicy peppers = boy
• Sweets, fruits and desserts = girl
• Sour or citrusy foods = boy
• Dairy, ice cream and comfort foods = girl

While these old-wives’ tales are fun to swap at baby showers, they aren’t based on solid science.

What the research says

To date, no high-quality clinical study confirms that pregnancy cravings reliably predict a baby’s sex. Key points:

• A small 1999 study in the British Journal of Obstetrics & Gynaecology found no link between food cravings and fetal gender.
• Larger reviews (e.g. Obstetrics & Gynecology, 2013) conclude that hormonal shifts, not your baby’s chromosomes, drive cravings.
• Every pregnancy is unique. Even if you crave salty foods with your first child and it’s a boy, that doesn’t mean it will happen again.

Why do cravings happen?

Cravings are normal—and common—during pregnancy. Possible explanations include:

• Hormonal changes: Rising estrogen and progesterone alter taste and smell.
• Nutritional needs: Your body may signal a need for specific nutrients (e.g. iron, vitamin C).
• Evolutionary theory: Some experts suggest cravings help protect mother and fetus from toxins or deficiencies.
• Emotional factors: Stress, fatigue or mood swings can trigger comfort-food cravings.

None of these factors relate to your baby’s sex.

Other signs vs. reliable methods

If you’re eager to find out baby’s sex, consider:

Reliable

• Ultrasound (18–22 weeks)
• Non-invasive prenatal testing (NIPT) from maternal blood (~10 weeks)
• Chorionic villus sampling (CVS) or amniocentesis (for genetic reasons)

Unreliable

• Cravings (“food cravings when pregnant with a boy”)
• Chinese gender calendar
• Ring-on-a-string test
• Heart rate myths

Tips for managing cravings

Whether you think you’re having a boy, girl or simply want to eat healthier, these strategies can help you balance cravings without guilt:

• Keep healthy options on hand: Cut veggies, fruits and whole-grain crackers.
• Practice portion control: Enjoy treats, but in moderation.
• Stay hydrated: Sometimes thirst masquerades as hunger.
• Listen to your body: If you crave red meat, discuss iron supplements with your care provider.
• Plan indulgences: If you love pickles or ice cream, build them into a balanced meal.

When to seek medical advice

Most cravings are harmless. However, some eating behaviors require attention:

• Pica (craving non-food items like clay or laundry starch) can signal deficiencies.
• Extreme aversions or binge-eating patterns may need nutritional counseling.
• Sudden changes in appetite accompanied by severe nausea, vomiting or weight loss.

If you have any concerns—especially symptoms that feel serious or life-threatening—speak to a doctor right away. You might also consider a free, online symptom check, using the doctor approved Ubie Symptom Checker.

Bottom line

“Food cravings when pregnant with a boy” remains an entertaining myth, not a diagnostic tool. Cravings arise from hormones, nutrition and emotion—factors unrelated to fetal gender. For accurate answers, rely on medical testing and professional ultrasounds rather than folklore.

Pregnancy is full of surprises. Cravings may make you feel closer to your baby, but they won’t reveal whether you’re expecting a son or a daughter. Focus on nourishing your body, enjoying the journey and staying in touch with your healthcare team.

If you’re ever unsure about a symptom or eating pattern, don’t hesitate—use the Ubie Symptom Checker (free, online symptom check, using the doctor approved Ubie Symptom Checker) or speak to a doctor for personalized guidance.

Speak to a doctor about anything that could be serious. Your healthcare provider is your best resource for both pregnancy nutrition and accurate information about baby’s development.