Myths about weight loss!

As 2021 begins, many
of us might be planning to lose some weight. However, when it comes to dieting
and weight loss, confusion abounds. Here, we dispel 11 widely held myths.
During the holiday
season, many people take on more calories than they work off. Consequently,
adding a little extra weight at this time of year is not unusual.
Classically, January
is a time of change, and many people go on health kicks that include weight
loss. With that in mind, we address some common misconceptions.
1. Skipping breakfast aids weigh loss
The common adage that breakfast is the most important meal of the day may or
may not be true, but it seems unlikely that skipping the morning meal aids
weight loss.
The rationale behind this strategy is that missing one meal a day leads to a
lower overall intake of calories. However, the story is not so straightforward.
One study, published in 2010, analyzed food intake information from 2,184
people aged 9–15 years. Twenty years later, the researchers asked for the same
information again.
They compared data from people who had skipped breakfast during childhood and
adulthood with data from those who had never skipped breakfast or had done so
only in adulthood.
Compared with the other groups, the participants who skipped breakfast during
both childhood and adulthood tended to have larger waist circumferences, higher
fasting insulin levels, and higher total cholesterol levels.
Sometimes, people who skip breakfast eat more during the rest of the day to
counteract the deficit. But one 2013 study found that missing breakfast does
not lead to eating more at lunch. The authors conclude that “Skipping breakfast
may be an effective means to reduce daily energy intake in some adults.
However, these
researchers only monitored the participants’ food intake at lunch, not dinner.
And the study only included 24 participants, so we should be wary of drawing
solid conclusions from the findings.
A much larger 2007 study, which involved more than 25,000 adolescents, looked
for links between skipping breakfast and having overweight. The researchers
also assessed the roles of alcohol intake and levels of inactivity.
The scientists found that skipping breakfast had a stronger association with
overweight than either alcohol consumption or levels of inactivity.
A 2020 systematic review and meta-analysis that appears in the journal Obesity
Research & Clinical Practice concurs. After analyzing the results of 45
previous studies, the authors concluded:
2. ‘Fat-burning’ foods can aid weight loss
Certain foods are referred to as “fat-burning.” This sounds too good to be
true, and it probably is. Some people claim that foods such pineapple, ginger, onions, avocados,
asparagus, celery, chilies, broccoli, green tea, and garlic speed up the body’s
metabolism, thereby helping the body burn fat. There is little scientific evidence, however, that these foods can help reduce
weight.
3. Weight loss supplements can help
Proponents of certain supplements claim that they, too, help the body burn fat.
In reality, these are generally ineffective, dangerous, or both.
The Food and Drug Administration (FDA) report that they have “found hundreds of
products that are marketed as dietary supplements but actually contain hidden
active ingredients […] contained in prescription drugs, unsafe ingredients in
drugs that have been removed from the market, or compounds that have not been
adequately studied in humans.”
4. Low fat foods
aid weight loss
Of course, reduced
fat or low fat foods are likely to contain less fat. However, these products
sometimes compensate with added sugar or salt. Checking labeling is key. Also, it is worth
noting that “reduced fat” does not necessarily mean “low fat,” but simply that
the fat content of a product is lower than the full-fat version.
5. Thou shalt
not snack
People may believe
that snacking is a cardinal sin of dieting. In some cases, though, snacking can
help people manage their caloric intake more effectively. It is not so much
snacking itself, but what one snacks upon that that counts.
Snacking may be more
complex than it first appears. While some snack on celery and others on
cookies, some people might snack because they are hungry and others because
they are bored.
Having a piece of
fruit or some low fat yogurt between meals, for instance, might reduce food
cravings, keeping a person from overeating at mealtimes or resorting to more
energy-dense snacks.
Some research has
shown that people with obesity are more likely to snack than people without the
condition. In this case, switching from unhealthful to healthful snacks may aid
in weight loss, if this is a goal.
In general, snacking
is multifaceted — it may support or hinder weight loss efforts, and in some
cases it may have little effect.
Older research, from
2007, investigated the role of snacking in weight loss. In the yearlong study,
the researchers asked one group of participants to have three meals a day,
without snacking. A second group was asked to have three meals and three snacks
daily. Individuals in both groups consumed equivalent amounts of energy each
day.
At the end of the study, the authors found no difference in weight loss between
the two groups; snacking, it seems, neither helped nor hindered.
Another study, from 2011, investigated the “relationship between eating
frequency and weight loss maintenance.” The researchers recruited participants
who had previously had overweight or obesity but who had since maintained
healthy weights.
They compared these individuals’ eating patterns with those of people with
obesity and people with healthy weights who had never had overweight.
The team found that participants with healthy weights ate more snacks than
those who had lost weight — and that people with overweight ate the fewest
snacks.
Overall, the authors concluded that “Eating frequency, particularly in regard
to a pattern of three meals and two snacks per day, may be important in weight
loss maintenance.”
6. No treats
allowed
This follows on from
the myth above. Of course, limiting sugary, high fat treats is important, but
cutting them out entirely is unnecessary and could be counterproductive.
7. Some sugars
are worse than others
There is a rumor that
minimally processed sugars, such as those in maple syrup or honey, are more
healthful than white sugar. In reality, our bodies process sugar in the same
way — regardless of its source. The gut reduces all sugars into
monosaccharides. Rather than looking at sugar processing, it is more important to note the
amount of sugar in any food. All types of sugar provide around 4 calories per
gram.
8. Cut out all
sugar
Following on from the
myth above, we know that all sugar is high in calories. However, a person
looking to lose weight does not need to mercilessly cut sugar from their diet.
As with all things, moderation is key. It may instead be a good idea to avoid
products with added sugar.
9. Artificial
sweeteners are healthful
To lower their sugar
intakes, many people opt for low- or no-calorie sweeteners, such as aspartame.
This may reduce the number of calories consumed, but some studies have linked
artificial, or nonnutritive, sweeteners to weight gain.
A systematic review and meta-analysis published in 2017 analyzed 37
existing studies involving a total of 406,910 participants to investigate the
impact of sweeteners on cardiometabolic health
According to the researchers.
Observational data suggest that routine intake of nonnutritive sweeteners may
be associated with increased BMI [body mass index] and cardiometabolic risk. However, not all studies have reached this conclusion. Researchers and health
experts continue to discuss the effects of nonnutritive sweeteners on weight
loss and metabolic health.
10. You can
target fat in specific areas
Some people are
particularly keen to lose fat from certain areas, such as the thighs or
abdomen. In reality, this targeting is not possible. All bodies respond
differently to weight loss, and we cannot choose which bits of fat will go
first.
However, if weight loss is paired with exercises to tone a particular area,
it can give the impression of more region-specific weight loss.
The take-home
Overall, losing
weight can be challenging. Our bodies evolved during leaner times, so they are
primed to take on energy and store it. However, many of us live in a world
where calories are readily available, and our bodies still store this energy as
if it’s going out of fashion.
In general, reducing the caloric intake and exercising is the most reliable
approach to weight loss. With that said, people with chronic diseases,
including diabetes and obesity, should speak with their doctors before
beginning a new weight loss regime.
It is also worth remembering that if anything seems too good to be true, it
probably is — any “weight loss miracle” is unlikely to be miraculous. Most
foods are not inherently unhealthful, but it is a good idea to consume
high-sugar and high-fat foods sparingly.