Does anyone here use fish oil straight instead of swallowing pills? I was looking at the fish oil available at GNC and has such high quantities in lower dosages.

Did anyone notice a different digestively between fish oil supplements and fish oil straight with a meal? I've already been having awful heartburn from since starting the diet.

There's no real difference between liquid and capsules in terms of effects. You need to focus on how concentrated the product is. If you are having heartburn, you might want to try a more concentrated product.