Bismihi Subhanahu Wa-ta'ala
Assalamooalaikum Warahmatullahi Wabarakatuh
Respected Sister or Brother

Hereunder is the response to your query subject to disclaimer:

A. In principle, it is permitted to purchase, eat or consume products made by Non Muslims with the following 2 conditions:

1. The product in itself must be Halaal.

2. It must not be related to any non Muslim religious functions for example, Christmas, Diwali, Cross, Idols, and Easter etc.

Notwithstanding, it is Afzal (best) to buy products from Muslims especially as the products you mention are made by Muslims in the hoards. We should then try our best to avoid.

Related Reading

Boycotting Products http://www.sunnipath.com/resources/Questions/qa00003394.aspx