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Untitled Document
FAT
THE GOOD, THE BAD AND THE UGLY!
BY GINA K. THORNBURG
Bring on the essential fats to boost your energy and your muscle-building hormones.
Like many adults in the 1990s, IFBB pro Aaron Maddron took the low-fat
mantra to heart. From every nutrition corner fat was trumpeted as a diet demon,
to be
avoided at all costs. Aaron, however, along with the nation’s top nutrition
experts, finally discovered the cost was too high. The mantra needed to be changed — from
low-fat to low-sat . . . low in saturated fat, that is.
From the time he began bodybuilding when he was 18 until about two years ago,
Aaron, 31, restricted his dietary fat to a level that he now, in retrospect,
considers too low. For years, his fat intake hovered around 10% of his daily
calories.
“That’s what we thought was correct,” Aaron explains. “But
my
skin would get dry, my energy was terrible and I’d have terrible food cravings.” The
tips of his fingers, he says, developed painful cracks. Through trial and error,
he learned what nutritionists are now in a hurry to tell a nation that has been
obsessed with eating low-fat products for years:
fat, when it’s the right kind and amount, is good for you. When Aaron
added more fat to his diet, his symptoms of fat deprivation disappeared and
his physique
remained just as lean.
CONCENTRATED ENERGY
Fat packs an energetic punch. With 9 calories per gram, it provides more than
twice the energy found in a gram of carbohydrate or protein. “Fat is a
concentrated source of long-term energy,” says Teryl Tanaka, chief clinical
dietitian at the Santa Monica-UCLA Medical Centre in Southern California, USA. “It’s
something you can always draw on after you’ve exercised for a long period.” For
someone who works out regularly and consumes an appropriate number of calories,
fat calories are used immediately to fuel exercise routines and bodily functions.
“If you’re working out five days a week, you’re going to be
burning
all those [fat] calories as it is,” notes Elizabeth Gilbert, nutrition
communicator for Tufts University in Medford, Massachusetts, USA. “You’re
not going to put on weight.” In fact, singling out fat as the culprit in
weight gain is misguided, according to some experts. “Blaming getting fat
only on the consumption of fat is ridiculous,” states Sheldon Margen, professor
emeritus of public health nutrition at the University of California, Berkeley,
USA. “You
have to look at the entire energy spectrum.”
This is what bodybuilders have been doing for years - intentionally controlling
their protein, carbohydrate and fat consumption. Problem is, many of them have
gone too low when it comes to fat, believing that their lean physiques wouldn’t
hold up under double-digit fat intakes.
But too little dietary fat can lead to a decline in testosterone levels, according
to a Penn State University study in the Journal of Applied Physiology. The study,
which involved 12 men in an exercise protocol, found that a low-fat diet correlated
with lower testosterone levels both before and after exercise.
With basic nutrition texts telling you that you need some fat for hormone production
as well as other vital body functions, and sports scientists noting the need
for adequate dietary fat to maintain muscle-building testosterone levels, fat-phobic
bodybuilders would do well to reconsider their ultra-low-fat regimes. But how
high (or low) should you go?
While the total amount of fat in a diet should stay under 30%, as recommended
by most experts, most agree that dietary fat of less than 20% is usually too
low for promoting good health. Since the balance of protein, carbohydrate and
fat should be measured by the week, not by the meal, a health-conscious bodybuilder
can have a cheat meal, as Aaron does, once a week, in which the fat content is
higher than in meals eaten the rest of the week.
When it comes to burning fat, bodybuilders have an advantage over sedentary
individuals. “A
well-trained muscle uses dietary fat more efficiently because when you have more
muscle, you have more active tissue,” Tanaka points out. Since muscle
burns far more calories than bodyfat, the bodybuilder can safely eat more calories,
including fat, than a less-muscular person.
Fat calories, however, are not created equal. The smart bodybuilder has to be
discerning in choosing which fats to eat.
BENEFITS OF THE RIGHT FATS
Fats are made up of molecules called fatty acids and are classified as either
saturated or unsaturated. Health-promoting fatty acids, which dominate in monounsaturated
and polyunsaturated fats, are called essential because the body can’t
produce them on its own. The only way to get these essential fatty acids (EFAs)
is from
food. The drawback to restricting dietary fat indiscriminately is inadvertently
cheating oneself out of these necessary fats and suffering the consequences.
“Several of the fatty acids are absolutely essential for the maintenance
of health,” Margen
says. “When you start cutting down on fats, you might be cutting down
on the wrong fats.”
Aaron and his wife Brandy, who own a health club, learned this all too well. “When
I first started getting ready for shows, I had a fat phobia,” confesses
Brandy, 31, an IFBB pro fitness competitor. “I would try to eat no fat.”
The results? Her hair and skin dried out and her nails got brittle. Like Aaron,
Brandy saw her energy levels drop. She stopped menstruating, too. “I knew
that wasn’t good and I had to change something,” she says. She
began eating more fat, like peanut butter in low-fat biscuits and flaxseeds
sprinkled
on cereal, and supplemented her diet with EFAs in pill form. She wishes she
had known 10 years ago what she learned the hard way.
“I was doing two hours of cardio a day trying to get lean,” she remembers. “It
was ridiculous. Since I’ve added in some fat and cut down on my carbs,
I can get ready for a show with much less cardio. I can stay a lot leaner-looking.”
The link between adding fat and cutting down on carbs is a matter of taste. “Fat
makes you feel satisfied when you eat,” Tanaka explains. A diet too low
in fat can leave a person feeling hungry. Aaron concurs: “We’ve found
that eating more fat and also supplementing with fatty acids has really helped
our cravings go away.” When he craved and ate too many carbs, his body
retained water, and he didn’t like the way he looked.
Aaron also promotes the benefits of fat to his joints. “Just from eating
10% more fat in my diet and supplementing with EFAs and flaxseed, my joint health
has improved.” Years of weight training had taken their toll on his joints,
causing repeated bouts of tendinitis in the elbows, shoulders and knees. “They
would just creak and groan and I’d feel lousy the first few sets,” he
recalls. More dietary fat has meant less discomfort.
Joints aren’t the only bodypart whose healthy function depends on fat. “Fat
is an essential component of nerve cells and hormones,” Gilbert says.
Because of this nerve connection, mental health can also suffer if dietary
fat plummets.
A person on a low-fat diet can become depressed, and Brandy experienced this
first-hand.
“You can actually get depressed [on a too-low-fat diet],” she states. “For
my first couple of shows, I felt like my hormones were out of whack because I’d
be really emotional.” A better- balanced diet has allowed her to get
leaner without getting moody.
Learning to cook with health-promoting fats can boost workout performance while
keeping the physique lean. “Every individual, regardless of bodytype or
metabolism, and those at high-level competitions, need to eat more EFAs or good
fat,” Aaron points out. “It will benefit every athlete.”
You can’t start gulping down the olive and flaxseed oils, but you can enjoy
some on your salad or with your pasta. You don’t have to choose the dry,
fat-free proteins all the time either, but savour some salmon and nibble on
some nuts during the week.
Low-Sat Is Where It’s At
Some fats don’t lend themselves to better health or moods. These fats,
called saturated because their molecules are filled with hydrogen atoms, are
solid at room temperature (think margarine). Saturated fat isn’t an essential
part of the diet, because the human body produces it on its own. Its share
of the dietary fat pie should be less than 10% of total calories, experts agree.
“Saturated fat is known to be a health risk if you eat too much of it,” Tanaka
says. “Stay away from anything that’s deep fried or has butter in
it, anything that’s obviously fatty or greasy.” Hydrogenated oils,
tropical oils and animal fats are typically high in saturated fat. A good guideline
to follow is to choose fats that have 2 grams or less of saturated fat per
serving, such as liquid and tub margarines, canola oil and
olive oil.
When Aaron eats a low-carb diet, he gets 20% of his calories from fat, 55%–60%
from lean protein and another 20%–25% from carbohydrates. He’s also
choosy about which fats he eats. “You don’t feel as good when you
eat bad fat,” he adds. “It’s not as digestible and it clogs
you up.”
Literally. High levels of saturated fat in the diet are linked to increased
levels of blood cholesterol, which can lead to blockage in the arteries and
heart disease.
Eating a variety of foods and limiting your intake of saturated fat should
keep most bodybuilders on the right track. “You do still need to enjoy what
you’re eating,” Tanaka says. “Your body isn’t supposed
to be a chemistry experiment.” M&F
Gina K. Thornburg is a freelance journalist living in Woodland Hills, California,
USA
THE CHOLESTEROL CONNECTION
Eating saturated fat and trans fats (mostly from hydrogenated oils) raises
the levels of total blood cholesterol, numerous clinical studies have shown.
High-sat animal fats, such as butter and beef fat, also contain cholesterol,
so they’re doubly damaging. High blood levels of cholesterol are known
to lead to heart disease, so choosing the right fats takes on more significance
when you’re tailoring your nutrition plan to suit your energy needs.
THE LANGUAGE OF FAT
>> Essential fatty acid: Fatty acids the body needs but cannot make on
its own. Two that have been identified are omega-3 and omega-6 fatty acids.
>>
Fatty acids: The building blocks of fat, composed of ‘fatty’ chains
of carbon atoms attached to hydrogen atoms and an ‘acid’ group
made of carbon, oxygen and hydrogen.
>> Monounsaturated fatty acids: When two carbon atoms on the fatty chain
lack hydrogen atoms on one side, the fat is not saturated. Since these missing
hydrogen
atoms leave one double-bonded pair of carbon atoms, the fat is called monounsaturated.
Monounsaturated oils are liquid at room temperature but start to solidify when
refrigerated.
>> Polyunsaturated fatty acids: These have more than one unsaturated bond
between carbon atoms. Polyunsaturated oils are liquid at room temperature and
in the
refrigerator.
>>
Saturated fatty acids: Every carbon atom on the fatty chain has all the hydrogen
atoms it can hold. That’s why it’s called saturated. Saturated
fats are solid at room temperature.
THE GOOD AND THE BAD
To get the most out of the fat you eat, make sure you get it from the right
sources. Aim for monounsaturated and polyunsaturated fats while avoiding saturated
ones. Two classes of monounsaturated and polyunsaturated fats have been identified
as essential to human health because the body cannot make them. These fats,
called omega-3 and omega-6 because of their molecular structures, have been
shown to be protective of the heart.
When choosing from the foods listed below, read labels when possible. It is
recommended you choose fats with 2 grams or less of saturated fat per serving,
such as liquid and tub margarines, canola oil and olive oil. The best way to
tell whether a prepared food is high in saturated fat is by its appearance:
it will look greasy or oily. If you eat it, you’ll notice a difference
in how you feel, typically heavy and bogged down. Examples of such foods are
full-cream milk products, fatty meats, tropical oils (such as coconut oil,
palm oil and palm kernel oil), partially hydrogenated vegetable oils (found
in most processed foods) and egg yolks.
While the following lists aren’t comprehensive, they will provide you
with a starting point to guide you when you shop. Happy eating!
>> MONOUNSATURATED FAT SOURCES
These are also rich in omega-6 fatty acids. Aim for a ratio of up to five times
the amount of omega-6s as omega-3s: almond oil, avocados, avocado oil, corn
oil, evening primrose oil, hazelnut oil, margarine (soft, tub with liquid vegetable
oil as the first ingredient), mayonnaise (made with safflower or soyabean oil),
nuts, olive oil, peanut butter, peanut oil, safflower oil, sesame oil, sesame
seeds, soyabean oil, sunflower oil, sunflower seeds.
>> POLYUNSATURATED FAT SOURCES
These are also rich in omega-3 fatty acids: canola oil, cod liver oil, flaxseed
oil, flaxseeds, halibut, herring, mackerel, salmon, sardines, sesame oil, sesame
seeds, tuna, walnut oil.
>> SATURATED FAT SOURCES
Avoid or use very sparingly these foods or foods made with them. It is recommended
that no more than 10% of total calories come from saturated fat. You’ll
recognise a high-sat suspect by its appearance: if it’s solid at room
temperature, like butter or the trimmable fat on some cuts of beef, don’t
go for it (avoid oily, shiny foods, too). Animal-fat shortening (lard, suet,
dripping), beef fat, butter, coconut oil, cottonseed oil, egg yolks, fatty
meats, full-cream milk products, palm oil, palm kernel oil, tropical oils,
vegetable shortening.
>> TRANS FAT SOURCES
Partially hydrogenated oils, ubiquitous in processed and fast foods, have been
shown to contain trans fats, which can damage arteries. Some studies have shown
that trans fats lower HDL (“good”) cholesterol and raise LDL (“bad”)
cholesterol in the blood. Because the amount of trans fats isn’t required
to be listed separately on nutrition labels, it’s hard to tell how much
of this fat you may be eating. One tip: chips, fried fish, fried fast foods,
baked goods, doughnuts, biscuits and crackers are usually high in trans fatty
acids.
FAT CALCULATOR
To determine how much fat you should consume, multiply your daily calorific
intake by 20% and 30%, then divide those results by 9 to determine fat grams.
Example: 20%–30% of a 3,000-calorie daily total is 600–900 calories
from fat, or 67–100 grams. Some days can be higher, some lower, but you
should average no more than 30% of calories from fat, with no more than 10%
of your total calories from saturated and trans fats.
The essential fatty acid linoleic acid should provide 1%–2% of your total
energy; for the 3,000-calorie diet, that’s 30–60 calories, or roughly
3.5–6 grams. For your omega-3s, consume 2–3 servings of omega-3-rich
foods daily, or take a supplement (alpha-linolenic acid will work, too; it’s
the parent of the omega-3 family).
HOW MUCH OF A GOOD THING?
In addition to helping the nerves, hormones and joints function better, dietary
fat is essential for absorbing the fat-soluble vitamins A, D, E and K. “They
can only be absorbed into the bloodstream if you eat them with a meal containing
fat,” says Elizabeth Gilbert, nutrition communicator for Tufts University
in Medford, Massachusetts, USA. That’s one more reason why it’s
important to get 20%–30% of total calories from fat. If you don’t
get enough, you’ll feel it. “You may not have as much strength
if you’re not eating as much fat,” Gilbert states. As long as saturated
and trans fats are kept to a minimum, or less than 10% of total calories, your
fat consumption should be on target. Gilbert points out that when measuring
total dietary fat, it’s best to focus on a chunk of time, like a week,
not just one meal or one day. “Think about your total [eating] activity
for a week,” she explains. In this way, you may eat more heavily on one
day than on others, thus allowing yourself to enjoy otherwise ‘forbidden’ foods..
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