Hypothyroidism can promote IBS and GERD

Don’t look further than you really need to in order to find interconnectedness in the body.  You know already that constipation is a typical symptom of suboptimal thyroid function.  But of course this isn’t limited merely to the colon.  Suboptimal thyroid function affects motility affects throughout the entire GI tract.  It also promotes fewer cleansing waves in the intestines (as generated by the migrating motor complex (MMC) in the body) which helps to prevent intestinal microbial imbalance.

Cleansing waves should occur every 90 minutes or so and don’t happen while we are eating (which is why “grazing” as a way of eating is not a good idea, but that’s another post for another day). Low thyroid function reduces the frequency and intensity of these cleaning waves which can allow microbial imbalance to develop, especially SIBO (small intestinal bacteria overgrowth), and cause “IBS” symptoms (bloating, cramping, distension, gas).  If you are new to SIBO, you may learn more here.

The same cellular “sluggishness” that limits cleansing waves in hypothyroidism usually also impairs digestive secretions, including stomach acid which can promote GERD and impair nutrient absorption.  Surely, there may be more complex issues at play with your hypothyroid patients who also have GI symptoms – but not necessarily.  Support thyroid function and digestion first and see what changes.  You can help your clients with triage relief in these cases (a product I often recommend is Thorne’s BPP – a combination of low-dose HCl to support stomach acid and full-spectrum digestive enzymes). But keep in mind:  ultimately the true path for sustained improvement will be via addressing the root cause and helping them to recover optimal thyroid function.

I hope this quick clinical tip serves you and your patients and clients.

Warmly,