It was a long and arduous day for materials producers' stocks yesterday. Many of them fell more than 5% after news that China's GDP growth landed short of the world's hopes. Accounting for around 40% of all metal demand, China shares the demand podium with no one. This was made crystal clear even after announcing 7.7% growth.

Investors in commodity producers must have cringed after checking their portfolios once the closing bell tolled the end of trading Tuesday in the U.S. Some key players on the global level had begun sliding before yesterday's added push. Are materials stocks worth a look now? Well, that all depends on your outlook for several of the materials that are critical components of global growth. For our analysts' take, check out the video below.

Joel South has no position in any stocks mentioned. Taylor Muckerman has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.