Household disinfectants promote obesity gut bacteria

New research shows those powerful and toxic household disinfectants do more than kill germs — they also kill off vital gut bacteria and shift your gut microbiome signature to promote obesity.

Our gut microbiome consists of several pounds of gut bacteria and research increasingly shows how powerfully these bacteria influence our overall health.

The composition of the gut microbiome determines much about our immune health, personality, brain function, and weight. In fact, scientists are increasingly discovering a connection between our microbiome signature and a propensity toward obesity.

For instance, being born via C-section, bottle feeding versus breast feeding as an infant, and frequent antibiotic use in childhood has been associated with a much higher risk of obesity.

Also, both mice and human studies shows that inoculating the gut of an obese subject with the gut bacteria of a thin subject causes swift weight loss. The reverse is also true — thin mice quickly become fat when inoculated with the gut bacteria of obese mice.

Now, a new study adds more weight to these findings by showing that multi-surface cleaning disinfectants are another factor that promote an obesity microbiome. Children who grow up in households that use these products regularly are more prone to obesity.

The Canadian study showed that three-year-old children who grew up in homes where these products were used two or more times a week were more overweight than their peers who grew up in homes where these products were used less often or not at all.

The bacterium scientists looked at is called Lachnospiraceae. In animal studies, higher levels of Lachnospiraceae is associated with increased body fat and insulin resistance. Insulin resistance is a stepping stone condition to diabetes and is often found in people with obesity.

Fecal samples from children in homes that used eco-cleaners or detergents free of the bacteria-killing ingredients did not show the same elevated levels of Lachnospiraceae.

It was important in the study to look at the home environments three-year-olds grew up in because microbiome researchers find that our lifelong gut microbiome is largely determined by age three.

Although more work needs to be done in this arena, animal studies have produced similar results.

Can you alter your gut microbiome signature?

Although it looks like the gut microbiome signature we develop in infancy plays a large role in our lifelong health, it is not completely set in stone.

In fact, the gut microbiome is increasingly being viewed as a dynamic organ that can change composition in as little as three days. The foods you eat profoundly influence your gut bacteria.

The best strategy to promote a healthy gut microbiome that favors fat burning over fat storage, healthy immunity, and balanced brain function is to eat a large and diverse array of produce, mainly vegetables, at every meal. It’s important to eat many different kinds of produce on a regular basis. Gut bacteria health is based on diversity, which is created by a diverse produce-based diet.

Gut bacteria also respond positively to regular exercise, an environment and diet as free of environmental chemicals as possible, and consumption of fermented and cultured foods and drinks, such as kefir water, kimchi, and sauerkraut.

Ask my office for more ways to promote a healthy gut microbiome.

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