IMG ALT tags - should they be the same or the product title?

[tiffany1103]

I have about 300 products.  Should I make all my IMG ALT tags with my keywords, such as sea glass jewelry, sea glass necklace, sea glass bracelets?  Or, should I make them what their title is, some of which do not pertain to the keyword, such as By the Sea. Some of my products do have keywords in them, but not all. I am hesitant on changing all the titles, as almost all URLs are indexed.

[OlegKorneitchouk]

Alt text should be a description of the image. So I would include the product title as well as the keywords. e.g. By the Sea - Blue Sea Glass Necklace

[LesleyPaone]

I personally always make them the same as the product title. The title of the product should 99% of the time describe the image very well, and the way that most ecommerce platforms are set up it can be done relatively quick for the whole site too.