Persons with celiac disease should give up coffee
No, coffee does not contain gluten, nor are there any chances of it getting contaminated.
Persons should buy gluten free shampoo and cosmetics
Firstly, it is uncommon for cosmetics to have gluten in them. Secondly, gluten does not get absorbed through the skin, thus shampoo or skin lotions are absolutely safe. Only care should be taken before applying anything on the lips, as from there gluten may get ingested quite quickly.
Animal and poultry products may contain gluten if they have been fed with grain
Fresh meat, poultry, and milk products are all gluten free by nature. There is no way that gluten can enter these products even if an animal or bird has been fed with grains.