Could probiotics cause 'brain fog' and bloating?

The use of probiotics could lead to a cluster of symptoms — that include brain fog and abdominal bloating — by increasing bacteria in the small intestine.

This was the conclusion that researchers at Augusta University in Georgia came to after studying 30 people with abdominal symptoms such as gas, bloating, and distension.

Of these people, 22 also reported symptoms of brain fog, which is a temporary mental condition that brings on confusion and difficulties with concentration and memory.

All 22 were taking probiotics, some more than one brand.

Some reported that their episodes of brain fog — which can last for several hours after a meal — were so bad that they had to give up work.