|
This basic nutrient makes us
drool and brings flavour to the foods we love. But,
because of its association with a variety of diseases, coronary
heart disease (CHD), diabetes, and obesity just to name a
few; it is important to recognize that although it is an essential
element of a healthy diet, it should be consumed in moderation.
While carbohydrates and protein supply the body with 4 kcals
of energy per gram, fats provide a whopping 9 kcals per
gram! This means that the more fat there is in a given
food the more likely it is to have a high number of calories.
Because the number of calories we ingest is directly related
to weight gain, a diet high in fat would also likely be high
in calories thus leading to weight gain.
Although there are often warnings associated with excess fat
consumption it is also a vital component of normal body functioning.
Fat is needed for insulation and protection of organs, and
maintenance of core body temperature. Maintenance of essential
body fat (%)is especially important for women because lack
of such impairs menstruation.
There are several different forms of fat:
The majority of body fat consists of triglycerides which circulate
in the blood. A caloric excess is converted into triglycerides
which are then stored as fat deposits most commonly on the
hips, thighs and abdomen.
Body fat also consists of cholesterol
which is notorious for coating artery walls thus narrowing
potential blood flow. This plaque build up is
one of the leading causes of atherosclerosis also known as
hardening of the arteries.
Cholesterol also circulates in the blood with the help of
a compound called lipoproteins. There are two types of lipoproteins
which play an essential role in determining the fate of cholesterol.
High-Density-Lipoproteins (HDLs): transport circulating
cholesterol to the liver where it can be metabolized and eliminated
from the body.
Low-Density-Lipoproteins (LDLs): transport circulating
cholesterol to the cells of the body where it can accumulate
leading to fat deposits and possible obesity.
For this reason it is important to maintain a higher level
of HDLs. Regular participation in an exercise program
appears to help reduce total cholesterol by increasing HDLs.
When considering the fats we ingest in our diet from day to
day it is important to recognize the different types of fat
we ingest and how they affect our bodies.
Saturated Fats: commonly come from animal sources and
are solid at room temperature. (Eg meat, milk, cheese and
butter.) Unfortunately, a high intake of saturated fats is
linked to high blood cholesterol levels and thus it is important
to monitor our daily intake of the fat.
Non Saturated Fats: commonly come from plant and nut
sources and are liquid at room temperature. (Eg vegetable
oil, cashews, and peanut and olive oils.)
|
|
While a certain level of fat
is required in the diet, at 9cal/g, fat calories can add up
quickly and push us over our necessary daily intake if we
arent careful. Fortunately its easy to reduce the fat
in our diets. Here are some fun tips to help you better manage
the fat in your diet!
Tips
1. Sauteeing your meat or vegetables
in water or chicken broth will save the whopping 240cals youd
be consuming if you used only 15mL of oil!
2. Using applesauce in place
of butter when baking your favourite treats will leave your
baked goods moist, tasty and can save you up to 90cals!
3. A snack food that fills you
up and has only trace amounts of fat is POPCORN! You can wolf
down a whole 2 air popped cups for only 60calories!!
4. A great easy way to cut back
on 5g of fat when cooking is to remove the skin from chicken.
5. Eat fish instead of meat. Not only is it
high in omega-3s, but it can save you up to 92cals per
serving!
|