Everyone and their moms got upset when Instagram announced a change in their Terms of Service. Everyone was saying how they were going to delete their account due to the fear of IG owning their pics and being able to sell them. Instagram co-founder Kevin Systrom had this to say in response: 

“The language we proposed also raised question about whether your photos can be part of an advertisement.”

"We do not have plans for anything like this and because of that we’re going to remove the language that raised the question.”

So now everyone can reflex and carry on with taking pictures of your food..lol