Healthy Finger Jello

I have followed this method for making finger Jello a few times now.  Gelatin is actually a very healthy food.  Those little colorful boxes of Jello?  Not so much!  What is in Jello that I don't want to put in my body?  Sugar, low quality gelatin from unknown sources, artificial flavors, food coloring and preservatives to name a few.  How complicated is this recipe?  Very easy, only 2 ingredients!  We added 20 drops of stevia to ours, which made it a 3 ingredient recipe.  We have only made this with 100% grape juice, but would like experiment with other flavors of juice.  Also, I used Great Lakes Beef Gelatin.