There's always sugar-free Red Bull which is preferable to the sugary default kind, but I like high-quality green tea. After you wean yourself off the hard caffeine spikes of coffee or Red Bull, you realise green tea contains trace amounts of caffeine, enough to get you over the hump after your body readjusts. It's also antioxidant-rich.
Seems like quite an over-generalization. I agree that a rational Bayesian approach would favor organic foods, because thousands of years of natural selection is probably a better indicator than laboratory tests of long-term low-dose toxicities and important but uncommon complex molecules in food supplies. But that doesn't mean that there aren't plenty of natural substances that are damaging to the human body even in moderation.