Not exactly burps that I get. It's just the aftertaste of the drink (water sunflower lecithin, vitamin C mixture) that is very uncomfortable and feels like vomiting. I wrongly used the word 'burp', probably because English is my second language. I just wanted to describe the unpleasant feeling after drinking and inappropriately used the word 'burp'.
Yes, I do realize that all of the vitamin C is not going to be encapsulated. One glass is the limit from Vitamin C side as well because any more will definitely cause loose BM.