Kinda. I find it’s “dose dependent”. The more scoops I put into my Huel meal, the slower I need to consume it to minimize GI symptoms. But with a smaller amount, I can consume it rather quickly. It also depends on how much food is still in the intestines/stomach from the previous meal. If I’ve been fasting for 16 hours, then drinking a 3 scoop Huel meal with other additives is no problem. It also seems to depend on how much water you consume around the same time (or, how dilute you make it).
The high fiber and the pea plant protein powder are the components of Huel I think that can cause issues in some people.
If you aren’t having any issues, then great. But it’s possible to get gas and bloating as you increase the total dose (or total daily dose) of Huel scoops. If that happens, you’ll want to drink it slower, lower the scoops per dose, or split the dose into two consumptions xx minutes apart or something to that effect. Diluting the Huel mix or simply drinking a bit of water after the Huel to dilute it in the stomach may also help. If you find it is hard to pass stools, then definitely drinking more water is needed. Ever eat a Fiber One Bar and not drink enough water?
Short answer is: yes, it is entirely possible to get some unwanted GI side effects from Huel if you drink a lot of it and/or too fast.