Jeffrey Salazar
Pregnancy is a time when a woman's diet is more important than ever, as it directly impacts the growth and development of the infant. While it's not necessary for mothers to eat for two, there are many key nutrient needs that significantly increase during pregnancy and need to be met through diet and/or supplementation. Doctors recommend a balanced diet that includes protein, low-fat dairy, whole grains, fruits, and vegetables. However, morning sickness, food aversions, and fatigue can make it challenging to eat a nutritious diet during the first trimester. So, is it okay to diet during this critical time?
| Characteristics | Values |
|---|---|
| Recommended foods | Folic acid (or vitamin B9/folate), oranges, strawberries, green leafy vegetables, fortified breakfast cereals, kidney beans, nuts, cauliflower, beets, protein (eggs, Greek yoghurt, chicken), calcium, whole grains, starchy foods, fruits, vegetables, lean meats, fish, milk, nutritional yeast, tempeh |
| Foods to avoid | Raw or partially cooked eggs (unless produced under the British Lion Code of Practice), more than 2 portions of oily fish per week (e.g. salmon, trout, mackerel, herring) |
| General advice | No need to go on a special diet, but eat a variety of different foods to get the right balance of nutrients, don't "eat for two", eat plenty of fruits and vegetables, ensure food is safe to eat by checking use-by dates |
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What You'll Learn
Morning sickness and nausea
Morning sickness, which includes nausea and vomiting, is a common symptom of pregnancy, with at least 70% of pregnant people experiencing it during the first trimester. It usually subsides in the second trimester, but in rare cases, it can persist until the end of the pregnancy.
The exact cause of morning sickness is not known, but it is believed to be linked to physical and chemical changes in the body, such as low blood sugar, increased pregnancy hormones like human chorionic gonadotropin (hCG) and estrogen, blood pressure fluctuations, changes in metabolism, stress, anxiety, fatigue, and eating or smelling certain foods.
- Eat small, frequent meals: Eating smaller amounts more frequently can help manage nausea. Going too long without eating can worsen nausea.
- Choose bland, dry, and cold foods: Opt for bland, salty, non-acidic, and dry foods that are easy to digest. Cold foods are preferable as they have less smell, which can help reduce nausea. Examples include crackers, pretzels, cheerios, toast, bagels, rice, and potatoes.
- Avoid strong odors and spicy foods: Strong food odors and spicy dishes can trigger or worsen nausea.
- Stay hydrated: Drink plenty of water throughout the day to aid digestion and rehydrate your body.
- Prenatal vitamins: Take prenatal vitamins, especially those containing vitamin B6, which has been shown to reduce nausea and vomiting during pregnancy. Consult your healthcare provider before taking any supplements.
- Increase protein intake: Protein-rich foods such as beef, poultry, fish, and eggs can help curb nausea by increasing gastrin levels.
- Choose fruits, vegetables, and starchy foods: Eat plenty of fruits, vegetables, and starchy foods like bread, potatoes, and rice. These provide essential vitamins, minerals, and fibre, aiding digestion and preventing constipation.
- Avoid oily fish: Limit your intake of oily fish like salmon, trout, mackerel, and herring to no more than two portions per week due to potential pollutants.
- Cooked eggs: Avoid raw or partially cooked eggs to prevent the risk of salmonella. Opt for thoroughly cooked eggs or those produced under the British Lion Code of Practice, which are safe to consume raw or partially cooked.
- Dairy products: Include dairy products in your diet, with a preference for low-fat options.
- Folic acid: Folic acid, also known as vitamin B9 or folate, is essential during pregnancy. It helps prevent neural tube defects. Sources include oranges, strawberries, green leafy vegetables, fortified breakfast cereals, kidney beans, nuts, cauliflower, and beets.
- Calcium: Calcium is critical for your baby's developing teeth and bones. Include calcium-rich foods in your diet, and consult your healthcare provider about a calcium supplement.
- Consult a healthcare professional: Speak to your healthcare provider for personalized advice and to address any concerns or severe symptoms.
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Nutrient-dense foods
While dieting is typically associated with weight loss, it is important to remember that the primary goal of a diet during pregnancy is to ensure that both the mother and the baby receive adequate nutrition. Therefore, rather than restricting food intake, a "diet" during the first trimester should focus on consuming a variety of nutrient-dense foods that provide essential nutrients for the mother's health and the baby's development.
- Dairy Products: Dairy products like milk, cheese, and yogurt are excellent sources of two types of high-quality protein: casein and whey. They are also the best dietary source of calcium, which is critical for the baby's developing teeth and bones. Additionally, dairy provides phosphorus, B vitamins, magnesium, and zinc.
- Legumes: Legumes, such as lentils, peas, beans, chickpeas, soybeans, and peanuts, are great plant-based alternatives to animal sources of protein. They also provide fiber, iron, folate, and calcium. Folate, also known as vitamin B9 or folic acid, is particularly important during the first trimester as it helps prevent neural tube defects in the developing fetus.
- Green Leafy Vegetables: Broccoli and dark, green leafy vegetables like kale and spinach are packed with essential nutrients. They provide fiber, vitamin C, vitamin K, vitamin A, calcium, iron, folate, and potassium. These vegetables can be easily incorporated into soups, pasta sauces, or smoothies to boost their nutritional content.
- Lean Meats: Lean beef, pork, and chicken are excellent sources of high-quality protein. Beef and pork are also rich in iron, choline, and B vitamins. However, it is important to ensure that meats are cooked thoroughly to minimize the risk of foodborne illnesses during pregnancy.
- Fruits: Aim for a variety of fresh, frozen, or canned fruits. Fruits provide essential vitamins, minerals, and fiber. They can also help ease morning sickness symptoms, as they are generally easy to digest. Choose options packed in natural juice instead of heavy syrup, and be mindful of the sugar content when consuming dried fruit or 100% fruit juice.
Remember, it is always best to consult with a healthcare professional or registered dietitian to build a personalized healthy eating plan that considers your specific needs and preferences.
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Weight gain
According to a study by the National Institutes of Health (NIH), excessive weight gain during the first trimester, defined as more than 2 kilograms (approximately 4.4 pounds), was associated with fetal fat accumulation. Fetuses of pregnant individuals with excessive weight gain showed signs of excess fat distribution in the upper arm and abdomen. These findings highlight the importance of managing weight gain during pregnancy to promote a healthy fetal weight and reduce the risk of potential complications.
Maintaining a healthy weight during pregnancy is essential for both the mother and the baby's well-being. While it is normal to experience anxiety about weight gain, it is crucial to remember that the extra weight gained during pregnancy can be lost after giving birth. A balanced diet and regular exercise are recommended to ensure a healthy weight gain during pregnancy.
To manage weight gain during pregnancy, it is advisable to focus on consuming nutrient-dense foods from various food groups. Aim for a balanced diet that includes fruits, vegetables, whole grains, lean proteins, and low-fat dairy products. These foods provide essential vitamins, minerals, fibre, and healthy fats while keeping calorie intake in check. It is also important to stay hydrated by drinking plenty of water and limiting sugary drinks.
In addition to a healthy diet, regular exercise can help manage weight gain during pregnancy. Consult with a healthcare provider to determine an appropriate exercise routine suitable for pregnancy. Remember, it is normal to gain weight during pregnancy, and this weight gain is necessary for the baby's growth and development.
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Foods to avoid
It is important to eat a well-balanced meal during pregnancy to ensure proper nourishment for both the mother and the unborn child. While most foods are safe to eat, there are certain foods that should be avoided or minimized. Here is a list of foods to avoid during the first trimester of pregnancy:
- Raw or undercooked meat and seafood: Uncooked seafood and rare or undercooked beef, poultry, and seafood should be avoided due to the risk of bacterial contamination with coliform bacteria, toxoplasmosis, and salmonella. Deli meats have also been linked to listeria contamination, which can cause serious complications during pregnancy.
- High-mercury fish: Fish that contain high levels of mercury, such as shark, swordfish, king mackerel, tilefish, and tuna, should be avoided. Mercury consumption during pregnancy has been associated with developmental delays and brain damage in the fetus.
- Raw shellfish: Raw oysters, clams, and mussels can carry harmful bacteria, viruses, or toxins that may cause food poisoning and other illnesses. Cooking shellfish helps prevent some types of infections but does not protect against algae-related infections associated with red tides.
- Raw or undercooked eggs: Raw eggs or foods containing raw eggs, such as homemade mayonnaise, aioli, mousses, and raw cake batters, should be avoided due to the risk of salmonella contamination. Salmonella can cause food poisoning and potentially harm the mother and the unborn child.
- Caffeine: While moderate caffeine intake is generally considered permissible, some studies suggest that high caffeine consumption may increase the risk of miscarriage, low birth weight, and other complications. It is recommended to limit caffeine intake to less than 200 mg per day during pregnancy, which is equivalent to about 1-2 cups of coffee.
- Alcohol: Alcohol consumption during pregnancy can lead to fetal alcohol spectrum disorder (FASD) and increase the risk of miscarriage, stillbirth, and premature birth. There is no safe level of alcohol consumption during pregnancy, and it is recommended to refrain from drinking alcohol completely.
- Unpasteurized dairy products: Avoid consuming unpasteurized milk, cheese, or fruit juice, as they increase the risk of bacterial infections. Soft cheeses, such as brie, camembert, blue cheese, ricotta, and feta, may contain listeria, a type of bacteria that can cause infections. It is safe to consume these cheeses if they are cooked to at least 75°C and eaten immediately.
- Vitamin A in excess: Excessive consumption of preformed vitamin A, especially during the first trimester, has been linked to congenital malformations and pregnancy loss. It is recommended to limit intake of meats like liver or kidney, which are high in vitamin A, to a few ounces per week.
It is always advisable to consult with a healthcare professional or a certified prenatal nutritionist for personalized guidance based on individual health conditions, symptoms, and lifestyle factors.
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Healthy snacks
It is not recommended to diet during the first trimester of pregnancy. This is because your body is experiencing a surge in hormones, which can lead to nausea, vomiting, and fatigue. Instead of dieting, focus on eating a variety of nutritious foods to ensure you and your baby are getting the right balance of nutrients. Eating a well-balanced diet during pregnancy is critical for ensuring the health of both you and your baby.
- Whole-grain pita or tortilla with halved cherry tomatoes and hummus. Tomatoes provide a substantial amount of beta-carotene, which is important for a healthy immune system. Hummus provides protein, fiber, and iron.
- Toasted whole-wheat frozen waffle or slice of whole-wheat toast topped with almond butter and sliced pear. Almond butter offers protein and fiber, and has no added sugar.
- Greek yogurt topped with blueberries and chopped walnuts. Greek yogurt has more protein than regular yogurt, and plain yogurt has less sugar than flavoured. Walnuts provide calcium, iron, and fiber.
- Trail mix with dried tart cherries, which contain naturally occurring melatonin that may improve sleep quality and duration.
- Dark chocolate, which contains heart-protective cocoa flavanols and has been shown to help lower blood pressure. It also contains small amounts of bone-building minerals.
- Whole-grain crackers with natural peanut butter and sliced apples. Peanut butter has protein and healthy fats, while apples provide fiber and vitamins.
- Whole-grain, higher-fiber tortilla chips with guacamole, which is high in folate and heart-healthy fats.
- Low-fat, lower-sugar fruit yoghurt with fruit.
To ensure food safety during pregnancy, remember to wash fresh fruits and vegetables carefully to remove all traces of soil, which may contain toxoplasma, a parasite that can harm your unborn baby. Also, make sure to cook meat, poultry, eggs, and fish thoroughly until steaming all the way through to prevent foodborne illnesses. If you need assistance in buying healthy foods, you may be able to get help through the Healthy Start scheme, which provides benefits for purchasing certain foods like milk, infant formula, fruits, and vegetables.
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Frequently asked questions
No, it is not recommended to actively diet or pursue weight loss during the first trimester of pregnancy. It is important to eat a variety of different foods to get the right balance of nutrients for you and your baby.
Folic acid is the most essential micronutrient during the first trimester. It plays a key role in preventing neural tube defects. Calcium is also critical for your baby's developing teeth and bones. Protein is important for muscle development and supports uterine tissue growth.
Eat plenty of fruits and vegetables to provide vitamins, minerals and fibre. Aim for at least five portions of a variety of fruits and vegetables every day. Starchy foods such as bread, potatoes, breakfast cereals, rice, pasta and noodles are an important source of energy and vitamins. It is recommended to eat six servings of grains per day, with at least half of those grains being whole grains. Include two to three servings of protein each day, such as lean meats, poultry, fish, eggs and Greek yoghurt.
Avoid having more than two portions of oily fish a week, such as salmon, trout, mackerel and herring, as they can contain toxins. Do not eat raw or partially cooked eggs unless they have been produced under the British Lion Code of Practice. Avoid spicy and high-fat foods if you are experiencing morning sickness.
