Most of us worry about our
weight, personal appearance, and much more. But these are not the only
reasons for concern. Excess body fat has profound metabolic
consequences, putting us at risk for heart disease, diabetes, stroke,
cancer, and possibly depression. Nonetheless, the prevalence of obesity,
a Body Mass Index of 30 or more, continues to rise in this country.
Today, 33% of American adults are obese, compared with 15% in the late
1970s (1). Not to mention, kids are on the horizon for obesity, along
with many health problems at such young ages.
Our genes haven’t changed much in the past two or three decades. And
although most of us get less exercise than we need, it’s unclear whether
we are much more sedentary than our parents were. What has changed is
how we eat and how much we eat. The bottom line is that we gain weight
when we take in more calories than we expend. And lately, Americans have
been eating more and more with less exercise.
The average person consumed 300 more calories per day in the year
2000 than in 1985 (1). Without a commensurate increase in physical
activity, that means an added two to three pounds per month. Do the math
for a year and see what you get. It can be quite disturbing when you
stop and think about it, especially if you have adolescents running
around.
But Why are We Eating More Calories Than We Really Need?
We can sit here and put the blame on many things, but at the end of
the day, you are the one that controls what you put in your mouth. It is
obvious that America has increased portion sizes everywhere you go. For
example, a typical movie-theatre soda, once about 7 ounces, can now be
“supersized” to 32-42 ounces!
A typical bagel, once 2 to 3 ounces, now weighs 4 to 7 ounces and may
contain the caloric equivalent of five or six slices of bread (2.) You
get where we’re going with this, America is trying to get us fatter and
we are allowing it.
Practically everywhere we go, whether we are shopping, traveling,
attending a sporting event, or seeing a movie, high calorie foods are
far more available than healthier foods. In one study, University of
Pennsylvania scientists left a large bowl of M&Ms at the front desk
of an apartment building for 10 days with a sign encouraging people to
help themselves, using the scoop supplied.
On some days, the scoop held one-quarter cup, on others, 1
tablespoon. People consistently took just one scoop, even though they
were taking twice as much on some days as they did on others. This
suggests we might be satisfied with smaller portions if only bigger ones
weren’t so easily available (3).
We’ve Changed Our View of Which Portion Size is Normal
In 2004, replicating a study first conducted in 1984, Rutgers
University researchers asked college students to serve themselves
typical portions of breakfast, lunch, and dinner foods from a buffet
table. The students chose amounts that were not only bigger than the
serving sizes on current nutritional labeling but also as much as 30% to
40% larger than those selected 20 years earlier (4).
It is clear that even though Americans have a choice to choose
smaller portions, we still go for the bigger helping. There could be
many reasons why we do this. When we have bigger food portions, we
assume that our satiety levels will be higher throughout the day. This
could be true, but the majority of Americans are not aware of balancing
their macronutrients in these big portion meals.
The majority of the time it’s all carbs that they are consuming, not
to mention more than likely higher glycemic index carbs, which are going
to just give them a large rise in blood sugar levels, not make the body
work hard while metabolizing these nutrients, and thus leaving them
hungry in a few hours and leading them to snack. What ever happened to
Americans wanting to look good naked?
If Americans were more aware of what they are exactly taking in, they
might have a fighting chance. For example, if there was a choice
between a bagel loaded with cream cheese and a sweet potato, most
Americans would go after the Bagel. When they should go for the lower
glycemic carb that is going to keep their blood sugar levels stable
throughout the day, as well keeping satiety levels elevated.
What to do About Portion Control
Whether you eat out, prepare your own meals, or catch food on the
run, portion control is essential to limiting your calorie intake. We
are huge advocates on hitting your daily macronutrient targets as you
know exactly how much your body is taking in on a daily basis, its
sustainable long term, and there is a ton of flexibility. But that type
of diet is not for everyone as we all have different schedules and
lifestyles.
Here are some tips we suggest for keeping portions in proportion.
- Train Your Eye: Measure out servings of the foods you commonly eat so you know what a single serving looks like. Developing an eye can be extremely helpful when dining out or attending social events, where portions may be too large or the food unlimited, aka a buffet.
- Change Your Tableware: Use smaller bowls or plates at breakfast, lunch, and dinner; the amount of food will look more plentiful.
- Eat a Wide Variety of Whole Foods: Eat a good mix of lower GI foods (Complex carbs) such as whole grains, veggies, sweet potatoes, brown rice, and fruits. Choose foods high in fiber, as fiber slows down digestion and keeps your satiety levels higher. Make sure to get in lean animal proteins and healthy fats as well.
- Control Portions at Home: Try and eat at regular intervals throughout the day; if you wait until you are hungry, you are more likely to snack on the wrong kinds of food or over indulge at the next meal. Also keep it to one serving at each meal, no second helpings.
- Control Portions While Eating Out: Go to restaurants that offer plenty of a la carte options, avoids buffets and salad bars. Plan ahead and check the restaurant menu online, that way you have an idea of what you are going to eat and how much roughly.
The bottom line is that we gain weight when we take in more calories
than we expend. And lately, Americans have been eating more and more
with less exercise. At the end of the day, only you can control what
goes into your body. And if you are over consuming calories with lack of
exercise, then you have to hold yourself accountable for the unpleasant
outcome.
References:
- Harvard Women’s Health Watch. Volume 15. Number 3. November 2007.
- Mattes, et al., Energy intake and obesity: Ingestive frequency outweighs portion size. Physiology & Behavior. 2013
- Young, et al., The Contribution of Expanding Portion Sizes to the US Obesity Epidemic. American Journal of Public Health.2002
- Kral, et al., Effects on hunger and satiety, perceived portion size and pleasantness of taste of varying the portion size of foods. University of Pennsylvania School of Medicine. 2005
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