Gut microbes influence calorie absorption

Gut microbes producing methane may help extract more calories from high-fiber diets, a new study finds.

Why it matters

  • Gut microbes influence how many calories we absorb.
  • High methane producers extract more energy from high-fiber diets.

By the numbers

  • Study compared high-fiber and processed diets.
  • High methane producers absorbed more calories from high-fiber diets.
  • Overall, high-fiber diets led to fewer calories absorbed than processed diets.

The big picture

  • Personalized nutrition could benefit from understanding gut microbiome.
  • Methanogens may have helped ancient humans extract more energy from food.

What they're saying

  • Personal anecdotes highlight impact of methanogenic overgrowth.
  • Experts note microbiome's role in diet responses.

Caveats

  • Study conducted on healthy participants.
  • More research needed for broader health implications.

What’s next

  • Study methanogens' role in weight loss diets.
  • Investigate effects in people with obesity, diabetes.