I want to try and SEO the keyword "liquid vitamin" I searched liquid vitamin on google and it came up with 6,510,000 search results then I searched liquid vitamins and it came up with 368,000 search results. How is it possible that just one letter made such a difference? Should I just try to focus on liquid vitamins because the word liquid vitamin is in it so I would benefit from both keywords?
Try using both. You can probably get a high rank faster with "liquid vitaminS" but the other one will be better long term. You should also look at google trends, see what people are actually searching for.
Yeah check keywordsuggestion tool in digitalpoint. You can find out what the users searching that related to your keyword.
I tried DP's keyword suggestion tool but it brings up different results. WT says liquid vitamins is the most popular but Overture says liquid vitamin is the most popular? which should i believe? Should I just try to focus on liquid vitamins because the word liquid vitamin is in it so I would benefit from both keywords?