How much redbull is too much redbull?

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Sugar free Redbull also has aspartame which is horrible for you.

If aspartame horrible for humans why would redbull be using it? Monster uses sucralose, is that better?

From https://en.wikipedia.org/wiki/Aspartame:

Aspartame is one of the most rigorously tested food ingredients.[5] Reviews by over 100 governmental regulatory bodies found the ingredient safe for consumption at current levels.[6][7][8][9][10] As of 2018, several reviews of clinical trials showed that using aspartame in place of sugar reduces calorie intake and body weight in adults and children.

I googled your other arguments too and they seem like speculation at best. You into conspiracy theories much?