Came across an article a while back... about how eating fatty foods and then having caffeine can be bad for health. Or (I would assume) having the caffeine first and then eating fatty foods.
Here's the headline of the article:
Drinking coffee with a high-fat meal 'can raise blood sugar to harmful levels'
Read more: http://www.dailymail.co.uk/health/artic ... z1whYHki00