If you are feeling the aches and pains of what you think is the flu, your diet may be the culprit instead, a new study confirms.
Researchers took a look into what’s become known as “keto flu” the fatigue, headache, nausea and mental fog that some people develop soon after starting a ketogenic diet.
The keto diet, which is loaded with fat and skimpy on carbs, has become a popular way to lose weight. By depriving the body of carbs the diet pushes it to burn fat instead.
The tactic “undeniably works” in spurring quick weight loss, said Ginger Hultin, a Seattle-based registered dietitian and spokesperson for the Academy of Nutrition and Dietetics.
At the same time, though, it can leave people feeling miserable, at least in the 1st few weeks.
That so-called keto flu has been recognized for some time, and it is thought to be the result of the radical dietary change.
Keto plans typically recommend getting 70% to 80% of calories from fat, 10% to 20% from protein, and a mere 5% to 10% from carbs, that means asking your body to shift into a completely different metabolic state.
For the new study, researchers looked to online forums to see what keto dieters had to say about their short-term side effects.
1st, they found 43 forums with threads dedicated to “keto flu,” then scanned posts from 300 users.
Overall, dieters’ most common complaints were headache, “brain fog,” constipation and other gastrointestinal problems. But their issues ran the gamut, from fatigue and dizziness, to heartbeat changes, sore throat and body aches.
People’s symptoms generally peaked in the 1st week of starting the keto diet, then resolved over the next few weeks.
The findings, published on 13 March in the journal Frontiers in Nutrition, do not necessarily reflect the typical keto diet experience or even the typical keto flu experience.
People who turn to online forums for help may be different from those who do not, said lead researcher Emmanuelle Bostock, of the Menzies Institute for Medical Research at the University of Tasmania, in Australia.
But, she said, there is still something to learn from their stories.
“It’s important to consider symptoms from a number of perspectives in order to gain a composite picture,” Ms. Bostock said.
For example, she said, the forum users give an idea of how severe and lasting keto flu symptoms can be: Of 60 people who discussed the extent of their symptoms, 45 described them as moderate or severe. And of 56 people who gave a time course, all but 4 said their symptoms faded within a month of starting the diet.
In the quest to find a diet, people may not always consider the unpleasant side effects. So it is important to be aware they exist.
1 of the Key problems with the weight-loss culture is this endless diet rollercoaster. That is, people may shed pounds on the keto diet, or other restrictive plan, but if the diet is not sustainable, those pounds are likely to come back, and then some.
Despite the indulgence in fat, the keto diet is difficult to maintain, and severely limits carbs from healthy sources like vegetables, fruits, beans, whole grains and dairy.
So, there is a concern that dieters will fall short on various vitamins, minerals and fiber, according to Hultin.
It is best to focus on cultivating a diet that supports your health, and can be sustained for the long haul. Actually enjoying your food is important, too.
“A lot of times in my work,” Ms. Hultin said, “it’s about helping people find a way of eating that’s healthy and makes them happy.”
Eat healthy, Be healthy, Live lively
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