Tylenol is easier to overdose on than NSAIDs. I really don’t think this guide is accurate. I’m really questioning the placement of cocaine and especially ketamine. Vitamin D from the sun? Lethal? I don’t believe black widows are that venomous, either. How are they even measuring this? Cocaine will give you a heart attack, Tylenol will shut down your liver, venom acts like an infection… are they basing lethal dose on how much it takes to cause some kind of fatal reaction, or under a controlled administration with a defined “fatal dose” based on a specific measurement, like damage to a human cell?