Ketchup & Worcestershire sauce both have a fair amount of "Sodium" in them and this came up under a google search for "Sodium Free Barbecue Sauce."
Basic Barbecue Sauce
From EatingWell: July/August 1994
Bottled barbecue sauces are often loaded with sodium and high-fructose corn syrup. In ours, strong coffee balances the sweetness of molasses and orange juice while the chiles and hot sauce provide subtle heat.
3 Reviews for Basic Barbecue Sauce
Ketchup & Worcestershire sauce both have high fructose corn syrup. So you're defeating the purpose of a "healthy" sauce.
I think you should have given the definition of the strongly brewed coffee! I used 3 tbsp per 3/4 of instant coffee (which is about 3x of the normal doze, worked great for me in a banana-coffee bread), and I had to increase, and increase, adn increase the recipe to get rid of at least some bitterness by adding water and tomato paste! It was not fun, and the sauce was still bitter even with dilution. Not all of us are coffee drinkers who instinctevly know what 'strong coffee' is!