A
pregnant woman needs to ensure that her diet provides enough nutrients and
energy for her baby to develop and grow properly, and also to make sure that
her body is healthy enough to deal with the changes that are occurring.
For a healthy pregnancy, the mother's diet needs to be
balanced and nutritious - this involves the right balance of proteins, carbohydrates and fats, and consuming a wide variety
of vegetables and fruits. If you are pregnant and your diet may be impacted by
ethical beliefs, religious requirements, or health conditions, you should check
with your doctor.
A
pregnant woman's calorie intake grows during pregnancy.
However, this does not mean she should eat for two, i.e. her calorie consumption does not
double, it just goes up.
Weight gain, if the mother is carrying just one baby, varies
considerably. According to the Institute of Medicine, USA, a woman whose body
mass index (BMI) is between
18.5 and 24.9 should gain from 25 to 35 pounds (11.4-15.9 kilograms) during the
nine months. A woman who is overweight at the start of pregnancy should gain
between 15 to 25 pounds (6.8 to 11.4 kg).
Weight gain recommendations may also
vary, depending on the woman's age, fetal development, and her current health.
Excessive or insufficient weight gain can undermine the health
of both the fetus and the mother. (Up to the eighth week of
pregnancy the baby is called an embryo, after that, when its major structures
have formed, it is called a fetus)
A woman who is
not overweight at the start of her pregnancy, should gain between 25 to 35
pounds by the end of the nine months
What should I
eat during pregnancy?
As mentioned above, the mother should
follow a varied, balanced, and nutritious diet, and it must include:
Fruit and
vegetables
Aim for five portions of fruit and/or
veggies per day. They may be in the form of juice, dried, canned, frozen, or
fresh.
Fresh and frozen (if frozen soon after picking) produce
usually have a higher vitamin and other nutrient content.
Experts stress that eating fruit is usually better
for you than just drinking the juice.
Plenty of
fruits and vegetables are essential for a healthy pregnancy
Starchy carbohydrate-rich foods
Starchy
carbohydrate-rich foods include potatoes, rice, pasta, and bread.
Protein
Good
animal-sourced proteins include fish, lean meat and chicken, as well as eggs.
Vegan mothers should consider the following foods as good sources of protein:
Quinoa (known as a "complete protein", it is said to have all the essential
amino acids), tofu and soy products. Beans, lentils, legumes, nuts, seeds and
nut butters are also good sources of protein. (Beans, lentils and legumes are
also rich in iron)
Eating
seafood reduces anxiety during pregnancy - British and Brazilian researchers
reported in the journal PLoS ONE(July 2013 issue) that pregnant women who
regularly ate seafood had lower levels of anxiety compared
to their counterparts who did not. Pregnant mothers who never consumed seafood
had a 53% greater risk of suffering from high levels of anxiety, the authors
wrote.
Fats
Fats should not make up more than 30% of a pregnant
woman's daily calories.
Researchers from the University of Illinois reported in the Journal of Physiology that a
high-fat diet may genetically program the baby for future diabetes.
Team leader, Professor Yuan-Xiang Pan, said "We found
that exposure to a high-fat diet before birth modifies gene expression in the
livers of offspring so they are more likely to overproduce glucose, which can
cause early insulin
resistance and diabetes." The typical Western diet,
containing about 45% fat is the kind that can cause these changes.
Prof.
Pan noted that in recent years, the Western diet has included more and more
high-energy, high-fat, cafeteria-type fast foods.
A team at the Complutense University, Madrid, Spain,
reported in the European Journal of Clinical Nutrition that a balance of fats, proteins and
carbohydrates are important for the developing baby's current and future good
health. They wrote that "(in their study) more
than half of women have low quality diets that include a high amount of animal
products rich in saturated fats yet a low amount of carbohydrates from
vegetables and pulses. Furthermore, more than a third of women displayed eating
habits that differ greatly from the Mediterranean
diet."
In the journal Endocrinology, a team from Oregon Health & Science
University explained that a
high-fat diet during pregnancy raises the risk of stillbirth because the blood flow from the mother
to the placenta is reduced.
According to the University of California, San
Francisco Medical Center:
§ the amount of fat a woman eats before becoming pregnant depends
on each person, who should receive an individualized nutritional assessment.
For the majority of women, no more than 10% of their daily calorie consumption
should come from saturated fat, less than 10% from polyunsaturated fat.
Monounsaturated fat is the best.
§ during pregnancy fat should make up between 25% and 35% of a
woman's daily calories. This depends on her carbohydrate goals. Monounsaturated
fats are preferable to saturated fats.
Examples
of foods high in monounsaturated fats include olive oil, peanut oil, sunflower
oil, sesame oil, canola oil, avocadoes, and many nuts and seeds.
Fiber
Wholegrain foods, such as whole meal (wholegrain) bread,
wild rice, wholegrain pasta, pulses, fruit and vegetables are rich in fiber.
Women have a higher risk of developing constipation during pregnancy; eating plenty of
fiber is effective in minimizing that risk. Studies have shown that eating
plenty of fiber during pregnancy reduces the risk (or severity) of hemorrhoids,
which also become more common as the fetus grows. Fiber can also help prevent
obesity; something the mother should try to avoid.
Calcium
It is important to have a healthy daily intake of calcium. Dairy
foods, such as milk, cheese, milk and yoghurt are rich in calcium. If the
mother is vegan, she should consider the following calcium-rich foods,
calcium-fortified soy milk and juices, calcium-set tofu, soybeans, bok choy,
broccoli, collards, Chinese cabbage, okra, mustard greens, kale,
and soynuts.
Zinc
Zinc
is a vital trace element. It plays a major role in normal growth and
development, cellular integrity and several biological functions, including
nucleic acid metabolism and protein synthesis. Since all these functions are
involved in growth and cell division, zinc is important for the growth and
development of the fetus.
The best sources of zinc are chicken, turkey,
ham, shrimps, crab, oysters, meat, fish, dairy products, beans, peanut butter,
nuts, sunflower seeds, ginger, onions,
bran, wheat germ, rice, pasta, cereals, eggs, lentils, and tofu.
If
you are concerned about your zinc intake, talk to your doctor who may advise
supplements.
A
pregnant woman needs to ensure that her diet provides enough nutrients and
energy for her baby to develop and grow properly, and also to make sure that
her body is healthy enough to deal with the changes that are occurring.
For a healthy pregnancy, the mother's diet needs to be
balanced and nutritious - this involves the right balance of proteins, carbohydrates and fats, and consuming a wide variety
of vegetables and fruits. If you are pregnant and your diet may be impacted by
ethical beliefs, religious requirements, or health conditions, you should check
with your doctor.
A
pregnant woman's calorie intake grows during pregnancy.
However, this does not mean she should eat for two, i.e. her calorie consumption does not
double, it just goes up.
Weight gain, if the mother is carrying just one baby, varies
considerably. According to the Institute of Medicine, USA, a woman whose body
mass index (BMI) is between
18.5 and 24.9 should gain from 25 to 35 pounds (11.4-15.9 kilograms) during the
nine months. A woman who is overweight at the start of pregnancy should gain
between 15 to 25 pounds (6.8 to 11.4 kg).
Weight gain recommendations may also
vary, depending on the woman's age, fetal development, and her current health.
Excessive or insufficient weight gain can undermine the health
of both the fetus and the mother. (Up to the eighth week of
pregnancy the baby is called an embryo, after that, when its major structures
have formed, it is called a fetus)
What should I
eat during pregnancy?
As mentioned above, the mother should
follow a varied, balanced, and nutritious diet, and it must include:
Fruit and
vegetables
Aim for five portions of fruit and/or
veggies per day. They may be in the form of juice, dried, canned, frozen, or
fresh.
Fresh and frozen (if frozen soon after picking) produce
usually have a higher vitamin and other nutrient content.
Experts stress that eating fruit is usually better
for you than just drinking the juice.
Why do I need
extra iron?
Iron makes up a major part of
hemoglobin. Hemoglobin is the oxygen-carrying pigment and main protein in the
red blood cells; it carries oxygen throughout the body. Iron also delivers
oxygen to the muscles, so that they can function properly. Also, iron increases
our resistance to stress and disease.
A woman's body absorbs iron more efficiently when she is
pregnant, so she has to consume more of it to make sure that both she and her
baby have an adequate oxygen supply. During pregnancy, the amount of blood in
the mother's body increases by almost 50% - she needs more iron to make more
hemoglobin for all that extra blood, as well as for the growing placenta and
the developing baby. Healthy levels of iron will also help prevent depression,
weakness, tiredness, and
irritability during pregnancy.
Most women start their pregnancy
without adequate stores of iron to meet the increasing demands of their bodies,
particularly after the third or fourth month. If iron stores are inadequate,
the mother may become anemic.
According to the United Nations, approximately 47% of
non-pregnant females and 60% of pregnant females have anemiaglobally.
If iron deficient women without anemia are included, the figure is 60% of
non-pregnant and 90% for pregnant women. In rich nations, approximately 18% of
non-pregnant and 30% of pregnant women are iron-deficient. In industrial
nations, figures are higher among those with lower incomes.
If the pregnant mother is
iron-deficient, there is a higher risk of:
§ Preterm delivery - the baby is born
early, a premature baby
§ Delivering a low-weight baby
§ Stillbirth - the baby dies before it
is delivered
§ Newborn death - the baby dies soon
after it is born
§ Tiredness, irritability, depression
(in the mother) during the pregnancy
§ If the mother is anemic later in the
pregnancy, there is a higher risk of losing a lot of blood when she gives birth
§ Some experts say there is a higher
risk of post-natal depression(postpartum depression). This has to be
scientifically proven with further studies.
§ The brain of the developing baby
could be profoundly affected if the mother has an iron deficiency, experts
found in a study; the consequences can have a long-lasting impact. The risk is
there even if the anemia is not severe, and occurs early in the pregnancy,
researchers from the University of Rochester Medical Center reported in the
journal PLoS One. They added that their findings are important,
because obstetricians may not detect or treat mild/moderate iron
deficiency, especially if it occurs during early pregnancy.
Following an iron-rich diet can help
prevent the problems and complications related to anemia during pregnancy.
The following foods are rich sources
of iron:
§ Dried beans
§ Dried fruits, such as apricots
§ Egg yolk
§ Some cereals, if they are fortified
with iron
§ Liver is rich in iron, but doctors
and most nutritionists advise pregnant women to avoid liver. Liver is very high
in vitamin A, excess vitamin A may harm the baby during pregnancy.
§ Lean meat
§ Oysters (make sure they are cooked if
you are pregnant)
§ Poultry
§ Salmon
§ Tuna
§ Lamb, pork and shellfish also contain
iron, but less than the items listed above
§ Legumes - lima beans, soybeans,
kidney beans, dried beans and peas
§ Seeds - Brazil nuts and almonds
§ Vegetables, especially dark green
ones - broccoli, spinach, dandelion leaves, asparagus, collards, and kale.
§ Wholegrains - brown rice, oats,
millet, and wheat.
Non-animal sources of iron, even
though their iron-content may be high, are less easily absorbed by the human
body. Mixing some lean meat, fish or poultry with them can improve their
absorption rates by up to threefold.
Some teas, such as commercial black
tea or pekoe teas have chemicals that bind to iron and make it much harder for
the body to absorb the iron.
Do I need to
take any supplements?
The information below should never supersede what your doctor
tells you.
The
types of food that contain folic acid
Iron and folic
acid
Before a woman is pregnant, she
should be consuming approximately 18 mg (milligrams) of iron each day, during
pregnancy this increases to 27 mg per day. The majority of women can get
adequate amounts if they follow a healthy diet. Some, however, may need iron
supplements to prevent iron deficiency.
Some women may experience heartburn,
nausea or constipation when taking iron supplements. In order to avoid these
problems, they should take their pills with meals, start off with smaller doses
and then work their way up to the full dose slowly, switch brands if one seems
unsatisfactory, and avoid taking their supplements when they go to bed.
The
National Health Service (NHS), UK, recommends that supplements in the form of
folic acid should be 400 mcg (micrograms) per day up to the 12th week of
pregnancy. Ideally, women should have been on them before becoming pregnant,
the NHS says.
Vitamin D
Guidelines in the UK say that a pregnant woman should take
supplements containing 10 mcg of vitamin D daily. Summer sunlight is a good
source of vitamin D (the light does not have the vitamin, but triggers the skin
to synthesize it) - however, exposure should be limited because too much
sunlight on the skin can cause burning and raises the risk of developing skin
cancer.
Zinc
A study published in the Food and Nutrition Bulletin reported that observational studies
have shown that "zinc deficiency during
pregnancy may cause adverse pregnancy outcomes for the mother and fetus."
After assessing several studies they found that pregnant women on zinc
supplements were 14% less likely to have a premature delivery.
They
also found that more underweight women who were also zinc-deficient and had
taken zinc supplements were more likely to have infants of normal birthweight.
Zinc supplementation did not appear to influence infant birthweight among
pregnant mothers of normal weight.
Avoid vitamin A
supplements
This
includes high dose multivitamins. Unless your doctor tells you otherwise. Avoid
cod liver oil supplements, unless your doctor tells you otherwise. Pregnant
women should avoid having too much vitamin A, as this may harm their baby.
Foods to avoid
during pregnancy
The following foods are best avoided
during pregnancy:
§ Soft mould-ripened cheese, such as
blue-veined cheese, Brie or Camembert. There is a risk of listeria infection. Listeria is a group of
bacteria that can cause potentially fatal infections to pregnant women and
their babies.
§ Any type of pate, be it vegetable or
meat based - the risk here is also of listeria infection (listeriosis).
§ Uncooked or undercooked
ready-prepared meals. It is crucial that ready-prepared meals are cooked
through until they are piping hot. The risk of listeriosis exists, as well as
infection from other pathogens.
§ Raw eggs, including any foods with
raw or partially-cooked eggs in them. Eggs must be well cooked through. The
risk here is of salmonellosis (salmonella infection).
§ Uncooked or partially cooked meat
should be avoided. Make sure it has cooked right through.
§ Gardening - wear gloves and wash
hands afterwards. There is a parasite in the soil that can cause an infection,
called toxoplasmosis, which can harm the unborn baby. Cat feces may also have
this parasite; so, use gloves when cleaning the cat litter.
§ Uncooked shellfish - there is a risk
of bacterial or viral contamination which can cause food poisoning.
§ Mercury in some types of fish -
shark, swordfish and marlin should be avoided, or kept to an absolute minimum.
They are at the top of the food chain an can have high levels of mercury. Many
experts say that tuna should be limited to one serving per week.
§ Empty calorie foods - cakes,
biscuits, cookies and candy should be kept to a minimum. They are high in sugar
and fat, have little nutritional content, and may undermine a pregnant woman's
efforts at maintaining a healthy body weight.
Should I stop
drinking alcohol completely?
Public health authorities throughout
the world have been progressively reducing the maximum amount of alcohol a
woman should drink each week.
When a woman consumes alcohol, it
passes from her blood, through the placenta and to the baby. A fetus' liver is
one of the last organs to completely develop - it does not fully mature until
well into the second half of pregnancy. A fetus' liver cannot process alcohol
anywhere nearly as well as an adult's can. Too much exposure to alcohol can
seriously undermine the baby's development. Most healthcare professionals
advice pregnant mothers to avoid alcohol altogether.
The UK National Health Service says
that if a pregnant mother does choose to drink alcohol, she should have no more
than two units of alcohol once or twice a week. NICE (National Intsitute for
Health and Clinical Excellence), UK, advises pregnant women to avoid alcohol
completely during the first three months of pregnancy, otherwise their risk of
miscarriage is increased.
Heavy drinking during pregnancy may
harm both the mother and the baby. There is an increased risk the baby will
develop FAS (fetal alcohol syndrome), which may include restricted growth,
behavioral disorders later on, as well as learning problems - there is also a
greater risk of facial abnormalities.
Should pregnant women avoid caffeine?
If a pregnant mother consumes too much caffeine during her
pregnancy, there is a raised risk of giving birth to a low birth weight child,
which can lead to health problems later on. There is also a higher risk of
miscarriage. Many foods and drinks contain caffeine, not just coffee.
Examples include some sodas (fizzy soft drinks), energy drinks, chocolate and
tea. A number of cold and flu remedies also contain caffeine. A
pregnant woman should talk to her doctor, nurse or pharmacists before taking a
remedy.
Most
health authorities around the world say that coffee does not need to be cut out
completely, but should not exceed more than 200 mg per day. A standard mug of
instant coffee contains 100 mg of caffeine, a mug of filter coffee 140 mg, a
mug of tea 75 mg, one can of coke 40 mg, an energy drink can 80 mg, a 50 g bar
of milk chocolate about 25 mg, and a 50 g bar of dark (plain) chocolate about
50 mg.
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