The standard "I am not a lawyer; don't rely on legal advice from strangers on the internet" disclaimer applies.

Generally, you are legally allowed to photograph products and their logos in the U.S., and publish those photos on your website.

Avoid things that imply: endorsement by the company or the trademark owner; commissioning of your photo by the company; or really, any relationship whatsoever. Also avoid somehow showing the products or the marks that can be construed as maliciously false or damaging to them, etc. Anything like that would expose you to tort claims.

Of course, the company is not prevented from filing suit against you, even if the suit has little or no merit – SLAPP (strategic lawsuits against public participation) suits are an example of this type of action (although usually, it's to silence criticism of the company, and are less often about photographs). Often times, the artist/photographer/writer settles such suits, even though they are not in violation of any laws; the cost of responding to and fighting such suits is more than the creator is willing to spend. (In those cases, often "settlement" is just agreeing to a cease-and-desist, i.e., removal/unpublication of the photo(s).) So the suits are effective in achieving their goal, even though they are never heard in court.