Blog

Welcome to the blog of “The Digestion Coach,” Dr. Marcus Ettinger.

As a practicing doctor of 36+ years and GI health specialist, I have studied, written, and treated the human body for a long time. I created this blog to provide easy-to-understand information on complex topics and to help anchor everything I study. I hope the information on my blog increases your understanding of the body, disease, and health.

A diet rich in choline, carnitine, and tryptophan may increase cancer risk by producing trimethylamine n-oxide (TMAO) and indole-3-acetic Acid (IAA) metabolites.

Is There a Choline, Carnitine, Tryptophan Cancer Risk via Diet? Trimethylamine N-oxide (TMAO) and indole-3-acetic acid (IAA) are metabolites produced by gut microbiota from specific dietary precursors found in certain foods.... Read More

Diet and Cancer Risk Through Gut Health

How Diet and Cancer Link Through Gut Health: Fight Back with Food A Hidden Risk in Everyday Foods Foods like eggs, red meat, and nuts have fueled us with choline... Read More

The Gut-Lung Connection: Lung Health via Gut Health

If you’re living with asthma or chronic obstructive pulmonary disease (COPD), or you’re an older adult worried about lung infections like pneumococcal pneumonia, your gut might hold a secret weapon... Read More

Gut Health and Parkinson’s: How Diet Can Help

The Gut-Brain Link: How Food Boosts Gut Health and Parkinson’s If you live with Parkinson’s disease, you know the shaky hands, stiff muscles, and slow moves. These come from brain... Read More

Nine Ways Our Microbiome and Bitcoin Are Alike

Nine Ways Our Microbiome Is Like Bitcoin As a Bitcoin enthusiast, doctor, and digestion coach, I got to thinking: What if the trillions of microbes in our gut ran their... Read More

Saffron Extract for ADHD: A Natural Gut-Brain Solution

Saffron Extract for ADHD: A Natural Solution via the Gut-Brain Connection? Attention-Deficit/Hyperactivity Disorder, or ADHD, affects millions of kids and adults around the world. It can make focusing, controlling impulses,... Read More

Bifidobacterium breve for Infant Gut Health and Immunity

Bifidobacterium breve, or B. breve, is vital for a baby’s gut health. This helpful bacterium thrives on nutrients in breast milk, especially human milk oligosaccharides (HMOs). It builds a strong... Read More

MS Gut-Immune Restoration Protocol

The Gut-Immune Connection in MS and B-Cell Dysregulation Multiple sclerosis (MS) disrupts the gut-immune connection, but the MS gut-immune restoration protocol offers hope for rebalancing this critical axis. In MS... Read More