If someone wants to use cannabis but doesn't want any traces of it to show up in a blood or urine sample, they can try other things. CBD products made from hemp, like oils and tinctures, have very small amounts of THC and can be used alone or mixed with other ingredients to make tasty foods. Another option is to smoke marijuana strains with low amounts of THC.
Charlotte's Web, Harlequin, and ACDC are all popular strains of marijuana that are said to have less than 15% THC. Try Ringo's Gift, which is said to have about 7 percent THC.  It makes a good choice for people who are just starting out. If you eat a lot of a low-THC cannabis flower, it defeats the purpose of it being weak.