Investopedia: Kellogg's Diet Crashes

English poet William Blake, once said that you never know what is enough until you know what is more than enough. Kellogg (NYSE:K) management and shareholders can sympathize with that viewpoint, now that it looks as though the company cut much too deep with its "K-LEAN" cost-cutting initiatives. Although this is an embarrassing stumble for a sterling company, the bigger issue with the stock may be its valuation and its presently pokey overseas growth. 

A Disappointing Third Quarter  
Kellogg stock has long enjoyed a generous benefit of the doubt from the Street, largely because the company was seldom disappointing. This third quarter was a poor exception, though, as both sales and earnings faltered.

Read more here:
http://stocks.investopedia.com/stock-analysis/2011/Kelloggs-Diet-Crashes-K-KFT-GIS-CAG-UL-PEP-ADM-NSRGY.PK1107.aspx