Chapters

Take the gut check and we will sort the chapters by relevance for you.

Random chapter from this selection

Well supported

Choose several. Chapters with all selected keywords are shown.

Gut microbiota and metabolism

Treatment and tests

Everyday life and body

Chapters that readers rate at 4 out of 5 stars or more on average for this question. An average only exists from 3 ratings. You can choose several.

Microbial diversity

Why many different species keep the gut stable. 3 chapters – expand
  • Level:Expert Firmicutes, Bacteroidetes and body weight Does your gut microbiota make you fat? What is behind the much-quoted bacterial ratio. Body weightPlant diversityTests and diagnostics Plausible How we rate the evidence Established Recommended in medical guidelines or supported by several consistent meta-analyses of randomised human studies. Well supported Several randomised studies in humans with largely consistent results. Promising Single randomised or controlled studies in humans, not yet independently confirmed — or many consistent observational studies. Plausible Two cases: first observational or pilot studies with small samples — or a settled basis that is not in dispute, such as movement, sleep or meal pauses. But not tested in humans for symptoms. Experimental Barely studied in humans. Mainly lab and animal studies or theoretical reasoning; whether it helps is open.
  • Level:Expert The second-meal effect: why dinner helps decide your blood sugar in the morning Lentils at breakfast lower blood sugar at lunch, whole barley kernels in the evening lower it at breakfast. How this works, and what role gut bacteria play. FibreShort-chain fatty acidsBlood sugarBody weight Promising How we rate the evidence Established Recommended in medical guidelines or supported by several consistent meta-analyses of randomised human studies. Well supported Several randomised studies in humans with largely consistent results. Promising Single randomised or controlled studies in humans, not yet independently confirmed — or many consistent observational studies. Plausible Two cases: first observational or pilot studies with small samples — or a settled basis that is not in dispute, such as movement, sleep or meal pauses. But not tested in humans for symptoms. Experimental Barely studied in humans. Mainly lab and animal studies or theoretical reasoning; whether it helps is open.
  • Level:Expert GLP-1 from the gut: what bacteria do and what “natural Ozempic” cannot do Weight-loss injections mimic a hormone that your own gut wall also makes, stimulated among other things by bacteria. How this pathway works and why it does not have the same effect as the drug. Short-chain fatty acidsFibreBody weightBlood sugar Promising How we rate the evidence Established Recommended in medical guidelines or supported by several consistent meta-analyses of randomised human studies. Well supported Several randomised studies in humans with largely consistent results. Promising Single randomised or controlled studies in humans, not yet independently confirmed — or many consistent observational studies. Plausible Two cases: first observational or pilot studies with small samples — or a settled basis that is not in dispute, such as movement, sleep or meal pauses. But not tested in humans for symptoms. Experimental Barely studied in humans. Mainly lab and animal studies or theoretical reasoning; whether it helps is open.