Article By: Rabeea Khan
Student of University of Karachi
Research in
nutrition today
Scientists
are researching what types of diets are best for preventing and controlling
disease. For example, one study is examining the effect of the typical. American
diet on the risk of heart disease in African American and Caucasian women. In
another project, scientists are trying to find the best treatment for osteoporosis
(OSS-tee-oh-push-ROH- sums) in older women. Much research is also devoted to
the prevention and control of obesity, a major problem in the
United States
v The Bible, Book of Daniel - Daniel was captured by
the King of Babylon and had to serve in the King's court. Daniel objected to
being fed fine foods and wine, saying he preferred vegetables, pulses and
water. The chief steward reluctantly agreed to a trial, comparing Daniel's
dietary preference to those of the court of the King of Babylon. For ten days
Daniel and his men had their vegetarian diet, while the King's men had theirs.
The trial revealed that Daniel and his men were healthier and fitter, so they
were allowed to carry on with their diet.
v Hippocrates (Greece, ca460BC - ca370BC), one nutrient theory - according to Hippocrates
everybody is the same, no matter what they have been eating, or where they have
lived. He concluded that every food must contain one nutrient which makes us
the way we are. This one-nutrient myth continued for thousands of years.
Hippocrates is also famous for having said "Let
thy food be thy medicine and thy medicine be thy food."
v Antoine Lavoisier (France, 1743-1794) - became known as the father of chemistry and also the father of nutrition. He became
famous for the statement "Life
is a chemical process". He also designed the
"calorimeter", a device which measured heat produced by the body from
work and consumption from different amounts and types of foods. At the age of
24 he became a member of the French Academy of Science. In 1794, during the
French Revolution, he was beheaded.
v Christian Eijkman (Holland, 1858-1930) - a famous physician and pathologist (doctor who
identifies diseases by studying cells and tissues under a microscope). He
noticed that some of the people in Java developed Beriberi, a disease which
leads to heart problems and paralysis. When he fed chickens a diet consisting
mainly of white rice they also developed Beriberi type symptoms, but the
chickens fed unprocessed brown rice did not. White rice has the outer bran
removed, while brown rice does not. When he fed brown rice to patients with
Beriberi they were cured. Many years later it was found that the outer husks
(outer bran) in rice contain thiamine, or vitamin B1. Together with
Sir Frederick Hopkins, he received the Nobel Prize for Physiology/Medicine.
v Dr. James Lind (Scotland, 1716-1794) - a pioneer on hygiene in the Scottish and Royal
(British) navies. He stressed the importance of good ventilation, cleanliness
of sailor's bodies, clean bedding, below deck fumigation, fresh water by
distilling sea water, and the consumption of citrus fruits to prevent and cure
scurvy. He is well respected today for his work in improving practices in preventive
medicine and improved nutrition. He published his Treatise on Scurvy. Many decades later British sailors
were known as Limeys because
they regularly consumed lime juice and enjoyed better health and vigor than
sailors in most other navies.
Dr. William
Beaumont (USA, 1785-1853) - a surgeon in the US
Army. He became known as the Father
of gastric physiology for his research on
human digestion. Beaumont met Alexia St. Martin, a French trapper who was shot
in the stomach. Beaumont treated him but was unable to close the hole in his
stomach, which healed with an opening to the outside (a fistula). St. Martin
allowed Beaumont to make observations periodically, even allowing him to fiddle
around with his innards, which must have been painful. This allowed Beaumont to
conduct several experiments and make some important discoveries and
conclusions, including:
§ The stomach is not a
grinder.
§ There is no internal
"spirit" selecting good purpose foods one way and discarding bad
purpose foods to waste.
§ Digestion occurs because
of digestive juices which are secreted from the stomach.
§ Foods are not digested
separately and sequentially, but rather all the time and at different rates.
§ Stomach rumblings are
caused by stomach contractions, and nothing else.
§ Fat is digested slowly.
v Dr. Stephen Babcock (USA, 1843-1931)
- an agricultural
chemist. He is known for his Babcock
test which determines dairy butterfat in milk and cheese
processing. He is also known for the single-grain
experiment that eventually led to the development of nutrition as a
science.
Babcock had the idea of feeding dairy cattle with just one food source, either all corn plant or all wheat plant. He placed two heifers on either diet. However, when one of his animals died they were all taken away and he was not allowed to continue researching.
Eventually, Babcock's associates, Hart, Humphrey, McCollum, and Steenbok conducted the experiments again. Four five-month-old heifers were each fed either exclusively feed from corn plant, wheat plant, oat plant, or all three mixed together. They all put on weight at approximately the same rate during the first 12 months. However, the corn-fed cows went on to have normal calves, while the wheat-fed cows gave birth to either dead calves or calves that died soon after birth. They also noted that the corn-fed cows produced three times as much milk as the wheat-fed ones. Life can be hectic, and sometimes it’s hard to take the time to make healthy food choices.
Babcock had the idea of feeding dairy cattle with just one food source, either all corn plant or all wheat plant. He placed two heifers on either diet. However, when one of his animals died they were all taken away and he was not allowed to continue researching.
Eventually, Babcock's associates, Hart, Humphrey, McCollum, and Steenbok conducted the experiments again. Four five-month-old heifers were each fed either exclusively feed from corn plant, wheat plant, oat plant, or all three mixed together. They all put on weight at approximately the same rate during the first 12 months. However, the corn-fed cows went on to have normal calves, while the wheat-fed cows gave birth to either dead calves or calves that died soon after birth. They also noted that the corn-fed cows produced three times as much milk as the wheat-fed ones. Life can be hectic, and sometimes it’s hard to take the time to make healthy food choices.
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