The word cholesterols is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 19
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (65 words)
chooser, chooses, chortle, closers, closest, closets, clothes, coheres, cohorts, colters, coolers, coolest, corsets, creoles, creosol, cresols, cresset, echoers, elector, escorts, etchers, heteros, hollers, holster, hostels, hostler, lechers, loosest, looters, ocelots, osselet, ostlers, rechose, reclose, resects, resells, reshoes, reshoot, resoles, retches, retells, retools, roselet, schools, schorls, scooter, scrolls, secrets, sectors, selects, sellers, sheller, shelter, shooter, soother, soothes, stereos, sterols, strolls, tellers, toeless, tollers, toolers, torches, trochee