Would Taxing Junk Food Promote Healthier Eating?

http://www.dailyspark.com/blog.asp?post=would_taxes_on_junk_food_promote_healthier_eating

It appears to be that way? People think with their wallets. Many others simply are forced to think with their wallets and have to buy what they can afford. So if 'junk food' prices were raised, which unfortunately I don't see happening too soon, I would hope that healthy food options would proportionately decrease in price!