Are you trying to lose weight after the
holidays or just wanting to lose weight? This article should be of
value in either attempt. Look no further;
Mayo Clinic physicians say
that low-carb diets are slightly better than low-fat diets for weight
loss in the short-term.
The plethora of diets on the weight
loss market is often confusing. Low-carb diets, in particular, go
under numerous names - such as Atkins, South Beach, Paleo, and
Ketogenic. So, which of these is the best option for weight loss? Are
the diets safe, and is there a huge difference in results between
them?
The Mayo Clinic in Arizona aimed to
review studies that examine low-carb diets, in order to find out if
they are safe and effective for weight loss, and cardiovascular and
metabolic health. They published the results of their study in The
Journal of the American Osteopathic Association.
Depending on the diet, the physicians
found that the definition of low-carb diet is highly variable.
Previous studies have shown low-carb diets as comprising less than 45
percent of daily calories from carbohydrates. However, this figure
is not dissimilar to the typical Western diet that has more than 50
percent.
While all of the reviewed diets were
based on the idea of carbohydrate restriction, the allowed carbs
accounted for anywhere between 4-46 percent of daily calories, which
the researchers say, "convolutes the evidence."
Physicians advise eating 'real foods,'
not highly processed meats. An analysis of 41 trials that evaluated
the effects of low-carb diets on weight loss revealed that
participants lost between 2.5-9 more pounds than individuals who
followed a low-fat diet.
"The best conclusion to draw is
that adhering to a short-term low-carb diet appears to be safe and
may be associated with weight reduction," says Dr. Heather
Fields, an internal medicine physician at Mayo Clinic and lead
researcher on this study.
"However, that weight loss is
small and of questionable clinical significance in comparison to
low-fat diets. We encourage patients to eat real food and avoid
highly processed foods, especially processed meats, such as bacon,
sausage, deli meats, hot dogs, and ham when following any particular
diet," she adds.
To analyze the potentially harmful
effects and safety of low-carb diets, Fields and colleagues looked at
research conducted between January 2005 and April 2016. People tend
to eat more meat when carbohydrates are restricted, which could
increase the risk of death from all causes, including cancer.
Most of the studies failed to provide
the source or quality of proteins and fats consumed in the low-fat
diets, making it difficult to draw conclusions linking excessive meat
consumption to all-cause mortality and increased cancer risks.
However, the studies did show that
compared with other diets, low-carb diets were effective for weight
loss without adverse effects on blood pressure, glucose, and
cholesterol.
"Physicians must keep in mind
that the literature is surprisingly limited, considering the
popularity of these diets and the claims of health benefits in the
public press. Our review found no safety issues identified in the
current literature, but patients considering low-carb diets should be
advised there is very little data on long-term safety and efficacy,"
Field notes. Low-carb diets may provide short-term weight loss
satisfaction.
Field notes that drawing broad
conclusions proved difficult due to various limitations within the
research. Some of the studies did not include information on the
type of weight lost, such as whether it was fat, muscle, or water.
Also, many of the studies relied on participants recalling foods and
beverages they had consumed, which can be subject to error.
Dr. Tiffany Lowe-Payne, an osteopathic
family physician, points out that several factors can affect a
person's success with weight loss, including genetics, personal
history, and their ability to stick to the diet.
"As an osteopathic physician, I
tell patients there is no one-size-fits-all approach for health.
When you think of what dieters want - and what they need to stay
motivated - it is the satisfaction of results. They want to see
significant weight loss and fast. For many, a low-carb lifestyle
provides the answer they are looking for." Dr. Tiffany
Lowe-Payne
Dr. Lowe-Payne recognizes that
carbohydrates make up a considerable part of many people's diets.
She also highlights that after 6 months, weight loss is virtually the
same for individuals regardless of whether they are on a low-carb or
low-fat diet.
For patients who are trying to lower
their blood sugar levels or manage insulin resistance, low-carb diets
have been shown to be beneficial, Lowe-Payne concludes.