April 6, 2026

Are Bananas bad now?

This seems to be a textbook example of people finding random reasons to either eat or not eat something. My wife came home to report that she had been scolded for eating ripe bananas (i.e. bananas without any green and just getting a few black spots). To my taste, this is when bananas are perfect.

Set aside common sense for a bit and do some searches and see what the Google AI summary has to say:

Yes, black spots on bananas are generally safe to eat. These spots indicate that the banana is fully ripe, sugary, and softer, often signaling increased antioxidants
And I get:
Ripe bananas are not bad for you; they are highly nutritious, easy to digest, and packed with antioxidants. While they contain more sugar and have a higher glycemic index than green bananas, they remain a healthy source of potassium, vitamins, and fiber, and are not inherently bad for health.
Someone somewhere (with credentials apparently) is up in arms about lectin, in particular banana lectin (BanLec) The somebody is Dr. Gundry, and he is a doctor, so we need to listen to him? Is he the only one making this claim?
Once again, here is the Google AI summary, which pulls from a multitude of sources:
Banana lectin (BanLec) is generally not considered "bad" or harmful in normal dietary amounts and may actually offer health benefits. While some, like Dr. Gundry, warn that lectins can cause inflammation, scientific research indicates BanLec is stable, may aid in gut health, and shows potential for fighting viruses.

Dr. Steven Gundry is generally not considered a reliable or mainstream source of nutrition information by scientists and dietitians, who often classify his claims as pseudoscience. While a cardiac surgeon, his assertion that lectins in healthy foods (beans, tomatoes) cause major diseases lacks sufficient evidence and contradicts standard dietary guidelines.

Apparently Gundry published a book in 2017 entitled "The Plant Paradox" that has stirred up all kinds of controversy.

The lesson -- use common sense, and look for concensus, not information from just one person regardless of their credentials.


Have any comments? Questions? Drop me a line!

Tom's home page / tom@mmto.org