I had… How shall I put this… Delicate guts on the morning of day 2 with huel! Wasn’t actually that delicate, more explosive like you say… But I persevered & tho I’d say huel def causes a change in bowel habit for most ppl, from my own experience & what I’ve read on here, it does settle down & you’ll most likely feel better than ever in all departments physically, especially if as you say, your diet has been quite poor. So was mine pre-huel & it seems that may be a factor in huel being such a shock to your guts at first… I carried on tho & have had huel everyday for nearly 5 months now so trust me, it does get better! 
