Pregnancy comes with plenty of advice about what you should eat, what you must avoid and how much food your body needs. Unfortunately, not all of that advice is accurate.
Some pregnancy nutrition myths can lead to unnecessary worry, while others may encourage habits that are not supported by current health guidance. Let’s look at three common myths about eating for two, drinking caffeine and eating fish during pregnancy.
This article provides general educational information and is not a substitute for advice from your doctor, midwife or registered dietitian. Nutritional needs can vary from one pregnancy to another.
The phrase “eating for two” can make it sound as though pregnancy requires twice as much food. That is not the case.
During the first trimester, many people do not need additional calories at all. Energy needs generally increase later in pregnancy, but the increase is much smaller than an entire second adult-sized diet.
Health Canada explains that pregnant people need only a little more food during the second and third trimesters. The focus should be on nutritious foods rather than simply eating larger portions.
Helpful choices may include:
Small additions may be enough, such as fruit with yogurt, whole-grain toast with nut butter or vegetables with hummus.
Pregnancy is not the time for restrictive dieting unless a qualified healthcare professional has specifically recommended it. Your doctor, midwife or registered dietitian can help you understand your individual energy and weight-gain needs.
You do not necessarily have to give up every cup of coffee or tea during pregnancy. The important consideration is your total daily caffeine intake.
Health Canada recommends keeping caffeine intake below 300 milligrams per day during pregnancy. That is approximately the amount in two 8-ounce cups of coffee, although caffeine levels vary considerably between products and serving sizes.
Remember that caffeine can also be found in:
Check product labels and count caffeine from all sources, not only coffee.
Some herbal teas are also unsuitable during pregnancy, even when they do not contain caffeine. “Herbal” or “natural” does not automatically mean pregnancy-safe. Ask your healthcare provider before using unfamiliar herbal teas or supplements.
Fish can be an important part of a balanced pregnancy diet. It provides protein and nutrients such as omega-3 fatty acids that support healthy fetal growth and development.
The concern is not all fish. Certain varieties can contain higher amounts of mercury, so the type and quantity matter.
Health Canada recommends varying the fish you eat and limiting exposure to fish that may contain more mercury. Fresh or frozen tuna, shark, swordfish, marlin, orange roughy and escolar should be limited to no more than 150 grams per month during pregnancy.
Canned white or albacore tuna should be limited to no more than 300 grams per week. This restriction does not apply to canned light tuna, which generally contains less mercury.
Lower-mercury choices can include:
Fish should be thoroughly cooked during pregnancy. Avoid raw or undercooked fish and seafood, including raw sushi. If you eat locally caught fish, check the fish-consumption advice provided by your province or territory.
A balanced diet is only one part of prenatal nutrition. Health Canada recommends that people who could become pregnant and those who are pregnant take a daily multivitamin containing 400 micrograms, or 0.4 milligrams, of folic acid.
Some people need a different amount of folic acid or additional nutrients based on their health history, medications or dietary needs. Speak with your healthcare provider before changing your supplements.
Other helpful habits include:
For detailed Canadian guidance, read the Government of Canada’s Guide to a Healthy Pregnancy.
Healthy routines can begin before pregnancy. If you are currently trying to conceive, paying attention to nutrition and learning about your menstrual cycle may help you feel more informed and prepared.
Cycle dates alone do not always tell the whole story. Menstrual cycle tracking technology is intended to help people recognize their individual patterns rather than relying only on calendar estimates.
Fibra is developing smart underwear for women’s health that provides continuous reproductive wellness insights. It is designed to help users better understand cycle and ovulation-related patterns as part of their everyday routine.
If you are planning for pregnancy and want to learn about this non-invasive fertility and cycle-tracking wearable, explore Fibra and become a Founding Member. Founding Members receive 30% off, and the first products are expected to ship in January 2027.
Fibra is a general wellness product. It does not diagnose, treat, prevent or monitor a medical condition and does not replace medical advice or prenatal care.
Pregnancy nutrition does not have to be governed by fear or outdated rules.
You do not need to eat twice as much food, moderate amounts of caffeine can fit within Canadian guidance, and many varieties of cooked, lower-mercury fish can be part of a healthy pregnancy diet.
Because every pregnancy is different, discuss your diet, supplements and any food-safety concerns with your doctor, midwife or registered dietitian.
If you are still preparing for pregnancy, discover how Fibra supports better cycle awareness and learn about its limited Founding Member offer.
No. Pregnancy does not require twice your normal food intake. Most people need only a modest increase during the second and third trimesters. Ask your healthcare provider about your individual needs.
Health Canada recommends staying below 300 milligrams of caffeine per day during pregnancy. Remember to include caffeine from coffee, tea, soft drinks, chocolate and other sources.
Yes. Cooked, lower-mercury fish can provide valuable protein and omega-3 fatty acids. Avoid raw or undercooked seafood and follow Health Canada’s limits for higher-mercury fish.
Fibra is a reproductive wellness wearable for understanding personal patterns. It is not a medical device and should not be used as a substitute for prenatal monitoring or advice from a healthcare professional.
Fibra’s Founding Member orders are expected to ship in January 2027. Visit the Fibra website for current availability and campaign details.
