Intermittent fasting has been a form of eating that’s grown in popularity over the last five years.

But a new study finds that it could lead to muscle loss.

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But the scientist in Dr. Weiss needed more evidence.

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Ethan Weiss, MD, is a cardiologist and an associate professor at the Cardiovascular Research Institute at the University of California, San Francisco.

There were scant few trials in humans, and the ones that were done were small and or uncontrolled.

It was hard to know what to think, he says.

So he took matters into his own hands.

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What did his team find?

IF may not actually be all that good for weight loss or your metabolism.

In fact, it may even cause you tolosemuscle mass.

Young woman mixing ice coffee

Remind me: What is intermittent fasting?

Moskovitz notes there is some research, mostly in animals,suggesting these benefits.

This is largely due to the impact fasting has on insulin response in the body, she says.

Cropped shot of young woman shopping in the dairy section of a supermarket. She is reading the nutrition label on a container of fresh organic healthy natural yoghurt

Ethan Weiss, MD, is a cardiologist and an associate professor at the Cardiovascular Research Institute at the University of California, San Francisco.

Dr. Weisss study randomly put a total of 116 overweight or obese adult participants into one of two groups.

A total of 105 people completed the study for a full 12 weeks.

All participants received a scale to use at home and weighed themselves twice a day.

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Another 46 participants received four rounds of metabolic testing to check biomarkers including their insulin and fasting glucose levels.

Dr. Weiss says that his team intended to include food logs but ran into a technical issue.

Instead, his team used a mathematical model to determine participants energy intake.

red pigment in a wooden spoon

What did the study find?

Lots more research needs to be done here.

What does this mean for IF?

The jury is still out.

What is clear right now: IF may not work for everyone, says Moskovitz.

The best approach is one that fits the individuals needs and lifestyles, she says.

Balanced, customized, and intuitive eating prevails when it comes to long-term health and well-being.

Research has proven this time after time.

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