The research lends strong support to the notion that diet quality, not quantity, is what helps people lose and manage their weight most easily in the long run.
Below
are some of our readers’ favorite nutrition stories from the past
year, packed with information that may help you eat better in 2019.
How
a Low-Carb Diet Might Help You Maintain a Healthy Weight
By
Anahad O’Connor
A
large new study published in the journal BMJ in November found that
overweight adults who cut carbohydrates from their diets and replaced
them with fat sharply increased their metabolisms. After five months
on the diet,
they burned roughly 250 calories more per day than people who ate a
high-carb, low-fat diet, suggesting that restricting carb intake
could help people maintain their weight loss more easily.
The
new research is unlikely to end the decades-long debate over the best
diet for weight loss. But it provides strong new evidence that all
calories are not metabolically alike to the body. And it suggests
that the popular advice on weight loss promoted by health authorities
— count calories, reduce portion sizes and lower your fat intake —
might be outdated. Read more here.
The
Key to Weight Loss Is Diet Quality, Not Quantity, a New Study Finds
By
Anahad O’Connor
A
study published in February in JAMA found that people who cut back on
added sugar, refined grains and highly processed foods while
concentrating on eating plenty of vegetables and whole foods —
without worrying about counting calories or limiting portion sizes —
lost significant amounts of weight over the course of a year.
The
research lends strong support to the notion that diet quality, not
quantity, is what helps people lose and manage their weight most
easily in the long run. It also suggests that health authorities
should shift away from telling the public to obsess over calories and
instead encourage Americans to avoid processed foods that are made
with refined starches and added sugar, like bagels, white bread,
refined flour and sugary snacks and beverages, said Dr. Dariush
Mozaffarian, a cardiologist and dean of the Friedman School of
Nutrition Science and Policy at Tufts University. Read more here.
Which
Kinds of Foods Make Us Fat?
By
Gretchen Reynolds
For
a diet study published this summer in Cell Metabolism, researchers
randomly assigned one of 29 different diets to hundreds of adult male
mice. Some diets supplied up to 80 percent of their calories in the
form of saturated and unsaturated fats, with few carbohydrates;
others included little fat and consisted largely of refined
carbohydrates, mostly from grains and corn syrup, although in some
variations the carbs
came from sugar.
Yet
other diets were characterized by extremely high or low percentages
of protein. The mice stayed on the same diet for three months —
estimated to be the equivalent of roughly nine human years — while
being allowed to eat and move about their cages at will. The mice
were then measured by weight and body composition, and their brain
tissue was examined for evidence of altered gene activity.
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