The word vitaminised 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: 20
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (32 words)
advents, animist, avidest, destain, detains, deviant, diamine, diimine, divines, imidine, indites, inmates, instead, invades, invited, invites, maidens, medians, mindset, miniate, misdate, misedit, naivest, natives, sainted, sideman, stained, stimied, tandems, vainest, visited, vitamin