The Human Microbiome as Road Kill in the Age of the Anthropocene

  With the world entering a new geological epoch – the Anthropocene – the idea that we now live in a very different world than the one our not-so-distant ancestors inhabited, has never been truer. But amidst global deforestation, melting ice sheets, and general biosphere degradation, perhaps the human microbiome – the collection of our…

Paleo versus Vegetarian – who eats more fiber?

I often hear Paleo and Primal eaters say their shopping carts almost always look like that of a vegetarian grazing through the same super market when it comes to the non-grain veggies it contains. This comment – in my experience – often follows when addressing critics who say that a Paleo/Primal diet focused on fat…

Microbial Diversity: sometimes you have it, sometimes you don’t

This past January I wanted to see what would happen to my gut flora if I adopted a hunter-gatherer diet for a week – eating the plants, animals and drinking the same water as the Hadza hunter-gatherers of east Africa that I was working with. Among other hypothesis I wanted to test, would immersing myself…

Sorry low carbers, your microbiome is just not that into you

I recently posted a scatter plot (below) on Facebook/Twitter of preliminary metadata that we are accumulating as part of the American Gut project – which includes, among other things, a questionnaire of 50 + questions and a 7 day food journal. Plotting participants self-reported height, weight, and 7 days of dietary info (recorded using an…

Why Every Registered Dietitian Should Sign up for American Gut

If your job is to provide science-based nutrition – and sometimes lifestyle – advice to individuals, patients, schools, sport teams, health agencies, grocery stores, food manufacturers, or a myriad of any other individuals, businesses and governments who seek such services, you have been doing so with one hand tied behind your back. This is not…

Are you carrying the obesity pathogen?

I can remember where I was and what I was doing when it happened. I was sitting in my usual spot at Sound Café in the Marigny neighborhood of New Orleans sipping coffee on a Sunday morning. It was mid-August, 2006. It wasn’t a tragic event that locked this place and time in my memory,…

Paleo poo and what it might mean for you

Humans have lived in caves and rock shelters for millions of years. Over time – long periods of time – the detritus of daily life mixed with sediments that blew in from the outside and the floor of the cave literally rose beneath their ancient feet, sealing below evidence of past activities. And if we…

Ghosts of our African Gut

Every person on earth has two genomes. The genome we inherit from mom and dad is the one we are most familiar, and more or less stuck with for life. Our second genome, the one we initially acquire from mom as we pass through the birth canal, is more dynamic and made up of the…

Guts, Germs and Meals: what 37 microbiologist say about diet

Earlier this year (in 2012), U.S. News & World Report  reported its second annual list of the Best Diets, as ranked by a panel of  “22 nationally recognized experts in diet, nutrition, obesity, food psychology, diabetes, and heart disease.” The expert panel evaluated 28 diets including the well known Atkins, South Beach Diet, Biggest Loser…

From turtles to tortillas: the evolution of our low GI diet

PACKED INTO four-wheel drive vehicles, ten middle-aged men and women traveled nearly two days on bumpy dirt roads and trails to reach a remote location, deep in the middle of nowhere. For seven weeks they would live off the land as hunter-gatherers, completely cut off from the niceties’ of the modern world they were born…