ou’re right to say that cannabis is the most commonly used federally illegal drug in many parts of the world, including the United States.

Here’s what the data indicates:

• High Prevalence of Use: Millions of people report using cannabis. For example, in the United States, surveys have shown that tens of millions of adults have used weed in the past year.
• Comparison to Other Illicit Drugs: When compared to other drugs that are federally illegal in many regions, weed consistently has the highest rates of use.
• Global Trend: The World Health Organization has also stated that weed is the most widely cultivated, trafficked, and abused illicit drug globally.
  

  Cannabis is the most commonly used

It’s important to note a few related points:

• Legality is Changing: The legal status of weedis evolving, with many jurisdictions legalizing or decriminalizing it for medical or recreational use. This can influence patterns of use and how it’s categorized legally.
• “Recreational” vs. Other Drugs: When considering all recreational drugs, including legal ones like alcohol, nicotine, and caffeine, the ranking might differ depending on the specific population and region studied. However, among substances that are typically under legal control, cannabis stands out for its widespread use.
• Potential for Addiction: While commonly used, it’s also important to remember that cannabis use can lead to cannabis use disorder in some individuals.

So, in the context of federally illegal substances, your statement about cannabis being the most commonly used is generally accurate based on available data.