There is a meaningful amount of scientific literature connecting fructose and inflammation.
The AVERAGE human can only digest about 30g of fructose a day. Some substantially more, some substantially less.
A can of soda or three apples is about 30g of fructose.
Inflammation (high- and low grade)then being a second step linking to anxiety.
Sounds reasonable. But i have had a hard time finding evidence verifying that hypotesis.
Eating fiber with any carbohydrates reduces the absorption rate. It's partly why eating an Apple is better for you than eating a lolly despite both being high in sugar.
You're welcome.
...while actively competing in endurance events. They don't do this while sitting on the couch in the evening. And it's very specifically only endurance trained athletes who do this, sprinters would never need to consume that much sugar.
It's a valid point though, a sugary snack or sports drink directly before hitting the gym for a hard workout session is probably fine, as long as your blood wasn't already saturated with glucose from earlier sugary foods, and as long as you don't have insulin resistance.