clinical trial comparing a “food-combining” diet with a conventional balanced diet. At the same calorie intake, the food-combining diet did not produce additional weight loss or fat loss.
So don’t take the article to mean:
“These foods must be eaten together, and those foods must never be eaten together.”
That’s not supported by good evidence.
One correction I’d make to the article
The article says that beans + brown rice make a “more complete protein source.” That’s a common nutrition statement, but it’s unnecessarily simplistic.
You do not have to combine