CBD’s adverse effects are usually minor, but they include lethargy, fatigue, sleepiness, fever, diarrhea, vomiting, decreased appetite, and increased levels of alanine aminotransferase (a marker of liver damage).[1][2][3]
Other drawbacks include a paucity of human evidence, the unreliability of most CBD products on the market, and the “gray area” legality of CBD products.