Eating for two?
While many pregnant women use the excuse that they are 'eating for two' to eat what and when they like during pregnancy, it is actually a myth that you need to eat more.
Current recommendations for weight gain state that you should aim to put on at least 15 pounds but many experts now say this figure is outdated and that today’s high obesity rates mean many women are already too heavy going into pregnancy. Figures show that half of all pregnant women put on more weight than they should and it can raise their risk of miscarriage, pre-eclampsia and gestational diabetes. The simple fact is that if you’re overweight when you become pregnant you may benefit from not putting on any extra weight at all or even from losing weight.
The best thing is to be led by your OB-GYN or nurse-midwife and to aim for the lower end of whatever guidelines they give you. Don’t go all-out to pack on the pounds – it’s the quality of what you eat that counts, not the quantity. Focus on these nutritional must-haves…
Protein
This is vital to sustain your baby’s growth and development. Sources include lean red meat, poultry, pulses, beans, soybeans, tofu, eggs and cheese. A word of caution: pregnant women should avoid soft and mold-ripened (blue) cheeses such as Brie and Camembert due to the potential risk of listeria, a bacteria that can cause miscarriage and premature birth. In addition, make sure eggs are well cooked as there is a small risk of salmonella in undercooked eggs.
Fiber
Pregnancy hormones that relax your muscles and ligaments can have the same effect on your digestive tract and many women report constipation in pregnancy. Eating plenty of fiber (find it in whole grains and fruit and veg) can help you avoid this.
Carbohydrates
These are important as a source of energy that will help your baby to grow. Avoid refined carbs (white bread, rice and pasta) in favor of unrefined – wholegrain cereal and bread, brown rice and fruit and veg.
Folate
This B vitamin is crucial for the healthy development of your baby’s brain and spinal cord and reduces the risk of neural tube defects such as spina bifida. Research also suggests it can protect against childhood leukemia. The best food sources are leafy green vegetables such as spinach and kale, broccoli, citrus fruits, lentils, brown rice and chickpeas. Supplement your intake by taking a 400mcg daily supplement of folic acid (the synthetic version of folate) well before you even start trying for a baby, increasing to a 600mcg supplement once you find out you’re pregnant.
Calcium
This mineral is crucial for the development of your baby’s teeth and bones, and also helps keep your muscles strong and healthy (there’s also some evidence it might help relieve leg cramps, which are common in pregnancy). Vitamin D is essential for effective calcium absorption and is found in sunlight as well as sardines, salmon, milk, cheese, yogurt, and spinach.
Iron
You need this to ensure a good supply of red blood cells, which transport oxygen to your baby and your own muscles and organs. Natural sources include lean red meat, wholegrain bread and cereal, kidney beans, spinach and dried fruits. Vitamin C increases iron absorption, so drink OJ with your iron-rich meal; tea (which contains tannin) inhibits iron absorption and should be avoided if possible. Vegetarians may be more prone to anemia (iron deficiency), especially in the later stages of pregnancy, as iron derived from plant sources is harder for the body to process. Your OB-GYN or nurse-midwife may advise you take a supplement.
Vitamin C
This is essential for the development of your baby’s skin, bones and tendons. It helps tissue repair itself and heightens your body’s resistance to infection. It also helps your body to absorb iron properly. The best food sources of vitamin C are citrus fruits, broccoli, tomatoes, spinach and potatoes.
Vitamin B12
This helps our bodies process folate and also assists in making red blood cells and keeping the nervous system healthy. It’s found in poultry, red meat, liver, fish, cheese, yeast and eggs. Getting enough can be a challenge for vegetarians and vegans, so take a prenatal supplement that contains this vitamin.
Vitamin B6
This helps our bodies utilize energy from the protein and carbohydrates that we eat. It is also helps oxygen carrying hemoglobin to form. It will aid your baby’s overall development and may help ease morning sickness during the first trimester. The best dietary sources of B6 are salmon, eggs, green leafy vegetables, watermelons, bananas, soy beans, peanuts, milk, potatoes, bread, beef, liver, pork and some fortified breakfast cereals.
Vitamin A
Also known as retinol, this aids in the development of your baby’s eyesight, tooth enamel, hair and thyroid gland. It also promotes cell growth and resistance to infection. Food sources of vitamin A are plentiful (they include carrots, dairy products, leafy green vegetables and sweet potatoes) and most of us get what we need from our diet. An excess of vitamin A can be harmful so avoid supplements.
Vitamin D
This is manufactured by our bodies when we’re exposed to sunlight so if you cover up when you’re outside (perhaps for religious reasons) speak to your OB-GYN or nurse-midwife about supplementing.
Selenium
This mineral is found in meat, fish and nuts – in fact, just one unshelled Brazil nut contains 100mcg (the daily recommended dietary intake is 200mcg). A recent UK study found that slightly increasing selenium levels might help to prevent pre-eclampsia in women who were likely to be prone to the condition.
Fluids
Water, herbal teas and unsweetened natural fruit juices are essential to ensure you’re well hydrated. It’s likely you’ll be thirstier than before and it’s important not to let yourself dehydrate, as this can make you feel tired, dizzy and hungry, as well as increasing the risk of headaches. Fluids to avoid are caffeine containing tea, coffee, soda and, of course, alcohol.
Consult your OB-GYN or nurse-midwife for further advice in this area and check with them before taking any vitamin or mineral supplements.
If you have any more queries about your diet during pregnancy, you can ask them on the guide to pregnancy or mom health areas of our answers page.
The information in this feature is intended for educational purposes only. If you have any concerns about your health, the health of your child or the health of someone you know, please consult with a doctor or other healthcare professional.
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Last Modified: 17/06/2007