Sunday, June 29, 2008

FOLIC ACID FORTIFICATION


The U.S. Public Health Service recommended in September 1992 that all women of childbearing age consume 400 micrograms (ug) of folic acid daily to reduce their risk of having a pregnancy affected with spina bifida or other neural tube defects. Folic acid is a B vitamin. For women, this amount of folic acid on a daily basis spina bifida or anencephaly, both of which are neural tube defects (NTDs) in the baby.

PHS suggested several approaches by which this level could be reached:
Improved dietary habits
Fortification of the U.S. food supply
Daily use of folic acid supplements by women throughout their childbearing years.


History of Food Fortification:
Addition of iodine to salt was one of the earliest successful fortification programs. Iodine fortification was initiated in the U.S. in 1924 to prevent goiter, cretinism and other symptoms of severe iodine deficiency.
In the early 1930s, vitamin D was first added to cow's milk to aid in absorption of calcium and phosphorus, preventing development of rickets.
In 1938, voluntary enrichment of flours and breads was initiated to prevent the development of deficiency diseases in the general population. Enrichments included thiamin for beriberi, niacin for pellagra, riboflavin essential for proper functioning of vitamin B6 and niacin, and iron for iron deficiency anemia. Mandatory requirements were effective in 1943.
There are various other fortification requirements to enhance the quality of food such as vitamin A added to low and nonfat cow's milk and certain other dairy products, and lysine added to certain corn products to enhance protein quality.

Monday, June 23, 2008

Festivals in India

India, the land of festivals and fairs. It is a land of festivity - religious as well as folkloristic. Whether you go to the East or the West, North or the South you would be able to enjoy every month a festival or a fair. Every day of the year there is a festival celebrated in some part of the country. Be it cultural or religious, it gives everyone an opportunity to enjoy and join the festivity. More... http://www.pagesofindia.com

Nutrition and the Pregnant Vegetarian


Like all expectant mothers, vegetarians need to pay close attention to the foods they eat and the nutrients those foods contain. This need is a constant, and does not change because of a lifestyle choice. "What you consume when you are pregnant matters more because you are not only taking care of your own body, but you are starting the beginnings of a new one," says Dr. Amy Lanou, Nutritional Director for the Physicians Committee for Responsible Medicine. "The nutrients of special importance during pregnancy don't vary depending on what your diet is, they remain important."


Calcium is crucial to the development of bones and teeth. Even if a woman has an insufficient calcium intake, the baby will still get what it needs from the mother's body. Therefore to ensure her bone health, vegetarian and especially vegan women should be sure to consume calcium rich foods like kale, collards, broccoli, cabbage, legumes, enriched soy and rice milks, calcium fortified orange juice and breakfast cereals.

Folate or folic acid is instrumental in neural development. Vegetarians have a tendency to have a higher folate intake than do omnivorous people, because their diet often includes folate rich foods such as dark green leafy vegetables and legumes. If a woman is concerned about her folate consumption, she can always take a supplement.

Iron is needed to make hemoglobin for both mother and child. During pregnancy, iron supplements are commonly recommended in addition to iron-rich foods such as whole and enriched grains, legumes, soy products, nuts, seeds, dried fruits, andvegetables.

Vitamin B-12 plays an important role in fetal brain development, normal cell growth and protein synthesis. While not a lot of B-12 is needed, vegans need to pay special attention to this need. Omnivorous or vegetarian people usually meet their B-12 requirement because it is rather ubiquitous in animal based foods, but vegans don't have a dietary source of vitamin B-12. For these women, enriched or fortified soy or rice milk, nutritional yeast, and supplements are the best sources of B-12.

Vitamin D helps the body absorb calcium, and a woman's need for Vitamin D doubles during pregnancy. Vitamin D doesn't exist in that many foods naturally. Therefore, it is important for pregnant vegetarians and vegans to incorporate fortified milk, soy and rice milk, cereals and orange juice into the diet.

Wednesday, June 4, 2008

Fetal development in the first trimester



You're pregnant. Congratulations! You'll undoubtedly spend the months ahead wondering how your baby is growing and developing. What does your baby look like? How big is he or she? When will you hear the heartbeat?
Fetal development typically follows a predictable course. To help answer some of these questions, check out this weekly calendar of events for your baby's first three months in the womb.
Week 1: Getting readyIt may seem strange, but you're not actually pregnant the first week or two of the time allotted to your pregnancy. Yes, you read that correctly!
Conception typically occurs about two weeks after your period begins. To calculate your due date, your health care provider will count ahead 40 weeks from the start of your last period. This means your period is counted as part of your pregnancy - even though you weren't pregnant at the time.
Week 2: FertilizationThe sperm and egg unite in one of your fallopian tubes to form a one-celled entity called a zygote. If more than one egg is released and fertilized, you may have multiple zygotes.
The zygote has 46 chromosomes - 23 from you and 23 from your partner. These chromosomes contain genetic material that will determine your baby's sex and traits such as eye color, hair color, height, facial features and - at least to some extent - intelligence and personality.
Soon after fertilization, the zygote travels down the fallopian tube toward the uterus. At the same time, it will begin dividing rapidly to form a cluster of cells resembling a tiny raspberry. The inner group of cells will become the embryo. The outer group of cells will become the membranes that nourish and protect it.
Week 3: ImplantationThe zygote - by this time made up of about 500 cells - is now known as a blastocyst. When it reaches your uterus, the blastocyst will burrow into the uterine wall for nourishment. The placenta, which will nourish your baby throughout the pregnancy, also begins to form.
By the end of this week, you may be celebrating a positive pregnancy test.
Week 4: The embryonic period beginsThe fourth week marks the beginning of the embryonic period, when the baby's brain, spinal cord, heart and other organs begin to form. Your baby is now 1/25 of an inch long.
The embryo is now made of three layers. The top layer - the ectoderm - will give rise to a groove along the midline of your baby's body. This will become the neural tube, where your baby's brain, spinal cord, spinal nerves and backbone will develop.
Your baby's heart and a primitive circulatory system will form in the middle layer of cells - the mesoderm. This layer of cells will also serve as the foundation for your baby's bones, muscles, kidneys and much of the reproductive system.
The inner layer of cells - the endoderm - will become a simple tube lined with mucous membranes. Your baby's lungs, intestines and bladder will develop here.
Week 5: Baby's heart begins to beatYour baby at week five (three weeks after conception)--------------------------------------------------------------------------------
At week five, your baby is 1/17 of an inch long - about the size of the tip of a pen.
This week, your baby's heart and circulatory system are taking shape. Your baby's blood vessels will complete a circuit, and his or her heart will begin to beat. Although you won't be able to hear it yet, the motion of your baby's beating heart may be detected with an ultrasound exam.
With these changes, blood circulation begins - making the circulatory system the first functioning organ system.
Week 6: The neural tube closesYour baby at week six (four weeks after conception)--------------------------------------------------------------------------------
Growth is rapid this week. Just four weeks after conception, your baby is about 1/8 of an inch long. The neural tube along your baby's back is now closed, and your baby's heart is beating with a regular rhythm.
Basic facial features will begin to appear, including an opening for the mouth and passageways that will make up the inner ear. The digestive and respiratory systems begin to form as well.
Small blocks of tissue that will form your baby's connective tissue, ribs and muscles are developing along your baby's midline. Small buds will soon grow into arms and legs.
Week 7: The umbilical cord appearsYour baby at week seven (five weeks after conception)--------------------------------------------------------------------------------
Seven weeks into your pregnancy, your baby is 1/3 of an inch long - a little bigger than the top of a pencil eraser. He or she weighs less than an aspirin tablet.
The umbilical cord - the link between your baby and the placenta - is now clearly visible. The cavities and passages needed to circulate spinal fluid in your baby's brain have formed, but your baby's skull is still transparent.
The arm bud that sprouted last week now resembles a tiny paddle. Your baby's face takes on more definition this week, as a mouth perforation, tiny nostrils and ear indentations become visible.
Week 8: Baby's fingers and toes formEight weeks into your pregnancy, your baby is just over 1/2 of an inch long.
Your baby will develop webbed fingers and toes this week. Wrists, elbows and ankles are clearly visible, and your baby's eyelids are beginning to form. The ears, upper lip and tip of the nose also become recognizable.
As your baby's heart becomes more fully developed, it will pump at 150 beats a minute - about twice the usual adult rate.
Week 9: Movement beginsYour baby at week nine (seven weeks after conception)--------------------------------------------------------------------------------
Your baby is now nearly 1 inch long and weighs a bit less than 1/8 of an ounce. The embryonic tail at the bottom of your baby's spinal cord is shrinking, helping him or her look less like a tadpole and more like a developing person.
Your baby's head - which is nearly half the size of his or her entire body - is now tucked down onto the chest. Nipples and hair follicles begin to form. Your baby's pancreas, bile ducts, gallbladder and anus are in place. The internal reproductive organs, such as testes or ovaries, start to develop.
Your baby may begin moving this week, but you won't be able to feel it for quite a while yet.
Week 10: Neurons multiplyYour baby at week 10 (eight weeks after conception)--------------------------------------------------------------------------------
By now, your baby's vital organs have a solid foundation. The embryonic tail has disappeared completely, and your baby has fully separated fingers and toes. The bones of your baby's skeleton begin to form.
This week, your baby's brain will produce almost 250,000 new neurons every minute.
Your baby's eyelids are no longer transparent. The outer ears are starting to assume their final form, and tooth buds are forming as well. If your baby is a boy, his testes will start producing the male hormone testosterone.
Week 11: Baby's sex may be apparentYour baby at week 11 (nine weeks after conception)--------------------------------------------------------------------------------
From now until your 20th week of pregnancy - the halfway mark - your baby will increase his or her weight 30 times and will about triple in length. To make sure your baby gets enough nutrients, the blood vessels in the placenta are growing larger and multiplying.
Your baby is now officially described as a fetus. Your baby's ears are moving up and to the side of the head this week. By the end of the week, your baby's external genitalia will develop into a recognizable penis or clitoris and labia majora.
Week 12: Baby's fingernails and toenails appearTwelve weeks into your pregnancy, your baby is nearly 3 inches long and weighs about 4/5 of an ounce. Your baby's head is nearly half the size of his or her entire body.