There are three basic ingredients in
your daily food intake…(this is not to mention all the vitamins and
mineral requirements)
PROTEIN…CARBOHYDRATES AND FAT.
You need all three in your diet. But in what ratio? Let’s
first take a look at each group.
PROTEIN (1 GRAM – 4 KCAL)
Proteins
are the body’s building blocks. You
need them for muscle and connective tissue growth. Proteins do not stimulate your
body’s insulin production and therefore your blood sugar doesn’t
drop and you do not feel hungry later.
Proteins also take a while to digest, so they make you feel
fuller longer. Proteins do
not supply much fiber, which is necessary to keep your digestive track
in order so you must remember to get fiber from another source.
The basic building blocks of all proteins are amino acids. There are 20 amino acids, nine
of which are considered essential because your body cannot make them so
they must be supplied in your diet.
The other eleven are known as non essential because your body has
the ability to manufacture them.
Proteins are found in both animal and plant foods. For a food to be able to support
growth and life it must contain all nine essential amino acids and is
therefore known as a complete protein.
Foods that have a deficiency of one or more of the nine essential
amino acids are known as incomplete proteins.
Animal products are considered higher quality proteins than plant
products because animal proteins are complete proteins, containing all
nine essential amino acids and in large amounts. While most plant
proteins are considered incomplete, they may be combined and when eaten
in proper combinations they do provide complete proteins. The only plant protein that is an exception to this is the
soybean. Soybeans are
considered a complete protein and are comparable to animal protein.
If your diet does not contain enough carbohydrates to supply your body
with the needed glucose, protein can be used as an energy source and
will synthesize glucose. This
process is called gluconeogenesis and is a costly state to be in because
it robs from the your muscles as if you were in a state of starvation.
So how much protein do you need to consume? Some studies recommend as much as four grams of protein per
kilogram of body weight while others suggest as little as 0.8 grams per
kilogram are required.
It is recommended that endurance athletes consume approximately 1.5
grams per kilogram of body weight per day for the first few months of
training. After a few
months the amount can be reduced to 1.2 to 1.4 grams of protein per
kilogram of body weight per day.
For strength and power athletes, it is recommended that you consume
between 1.4 and 2.4 grams of proteins per kilogram of bodyweight per day
with an average of about 1.7. It
is also important to note two things.
First one pound of muscle (.45 kg.) contains about 100 grams of
protein. So in order to
gain one pound of muscle mass per week, you need to consume
approximately 14.3 grams of extra protein per day. (as well as other
calories)
Secondly, there is no evidence to support intakes of 2.4 grams of
protein per kilogram of body weight per day more, will improve muscle
mass during heavy weight training.
Although the higher protein levels won’t harm you, excessive
levels may bring along higher levels of saturated fat and cholesterol.
You should try to consume protein in small portions throughout the day
and limit the amount you do eat to about 30 grams per meal.
High Protein foods include, red meat, fish, poultry, eggs, milk and
cheese. However, be careful
to eat protein foods that are low in fat and cholesterol. So try to select lean meats, non fat milk and low fat
cheeses.
CARBOHYDRATES (1GRAM =4KCAL)
The
primary function of carbohydrates is to provide an economical energy
supply for your body. Carbohydrates also furnish important vitamins and minerals
and flavor to foods and beverages.
Carbohydrates can be found in your food supply as starches,
sugars and fibers. Carbohydrates
can be broken down into two groups, Simple and Complex.
Simple carbohydrates are your basic
sugars, and can be turned into a quick energy source. The complex carbohydrates are a
longer burning energy source and are found in bread, potatoes, starch
vegetables, pasta and rice.
Approximately 50 to 60 percent of your daily calorie intake should come
from carbohydrate rich foods.
Insulin levels can play a major role in fat storage. Insulin a protein hormone is
released by the beta cells of the pancreas in response to sugar and
amino acids in the bloodstream. Insulin
aids in the transport of carbohydrates and amino acids into muscles,
promoting synthesis of muscle glycogen and protein. A problem arises when too many
carbohydrate calories are consumed.
Although you will gain more energy, size and strength from the
increase of insulin, it also effects fat storage. Insulin release stimulates the
enzyme lipoprotein lipase that plays a key role in fat synthesis while
inhibiting the enzyme hormone sensitive lipase which encourages fat
breakdown and metabolism.
Carbohydrates can be converted and stored as fat and the faster a
carbohydrate breaks down the more insulin is produced, and the easier it
is that fat can be deposited. It’s
also a good idea to limit your carbohydrate intake for at least three
hours before you go to sleep.
FAT (1GRAM – 9KCAL)
Gram
for gram, fats provide more than twice the energy or calories as either
carbohydrates or proteins. It’s
a shame fats are so terrible because they do add a richness and
creaminess to food.
Fats also make up part of the structure of cells and provide an
essential fatty acid (linoleic). Scientists
now believe that fat is incorporated into your ‘fat’ more easily
than other types of foods.
Fat also increases the viscosity
(stickiness) of blood, and sticky blood clumps together and attaches to
the walls of blood vessels. This
causes more clumping, interfering with blood flow and impairs cell
breathing. You can see how
a high fat diet can increase your risk of a stroke or heart attack. High fat diets have been
implicated in certain types of cancers, particularly that of the bowl
and breast.
So how much
fat
is too much? Well…The
daily consumption of dietary fat in most diets is over 40 percent to
total calories. The Fat in your diet should be in the 15% range however
some suggest the fat intake can be as high as 30% of your total daily
calories. Ideally it should
be no more than 67 grams.
One of the most popular forms of fat is called saturated fat. Saturated fat is any fat that is
solid at room temperature, like fat obtained from animal products, palm
oil, coconut oil, hydrogenated vegetable oil. Foods containing saturated fat
include meat, fish, poultry, milk products, eggs, lard, butter,
shortening, margarine, non dairy creamers, dessert toppings, chocolate
bars, cookies and crackers.
I’ve briefly talked about fats, but what are the differences? Well first fats are made up of
fatty acids. When three
fatty acids attach to a glycerol molecule it forms what is called a
triglyceride, which is the most common fat found in your bloodstream and
the foods you eat. Each
carbon atom has the ability of bonding with two hydrogen atoms. When every carbon atom on the
chain has bonded with two hydrogen atoms the fatty acid is called
saturated. The more
saturated a fat is the more harmful it is. If some carbon atoms have not
bonded with the hydrogen, the fatty acid is unsaturated and generally
healthier for you.
Unsaturated fat is found in two forms, monounsaturated and
polyunsaturated. When a
link exists between adjacent carbon atoms, it forms what is called a
double bond. When only one
double bond exists it’s called monounsaturated and when more than one
double bond exists it’s called polyunsaturated.
It sounds confusing I know but
from bat to better it’s saturated fad (lard), polyunsaturated (corn
oil) and monounsaturated (olive oil)
I know you
want to get in shape and look great.
Whatever your fitness goal…to slim down…gain muscle…tone
your arms or flatten your tummy…I’m here to help you accomplish your
goals and to improve your fitness level. You will learn how to select
and combine your diet with exercise, so that you can be the best you can
be.