Foodmanager.com is a specialty domain name.
Food manager gets board searched for 90,000 times per month and each click would cost advertisers more than $2. So using this domain name would position a website in an advantageous position which can gain favor from search engines like google and get listed on the top of the links returned. So that is how you can save a lot of ad dollars.
About 200 domain names contain keywords food manager and about 22 of them use exact keywords foodmanager. So it is popular domain name.