In favorable economic environments, even mediocre companies are able to grow their dividends. But when the going gets tough, it may be time to focus on Dividend Kings. These are the most proven dividend-paying stocks because they have demonstrated an ability to raise their payouts for at least 50 years. A half a century is such a long period of time that it virtually guarantees a company has raised its dividend through at least several recessions.

With 50 consecutive years of dividend growth, healthcare giant Abbott Laboratories (NYSE: ABT) is a Dividend King. Is it a buy for income investors right now? Let's dig into its fundamentals and valuation to get an answer.

In late July, Abbott Laboratories shared its financial results for the second quarter ended June 30. The healthcare company once again topped average analysts' expectations. 

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Source Fool.com