Odwalla Bars (made with whole fruit and grains)
A couple of the Odwalla flavors have more than 5 grams of protein per bar, and most contain 3 or more grams of fiber, too. They tend to be pretty low in saturated fat (1.5 grams of saturated fat or less per bar) but their percentage of calories from sugar ranges from 26% to 47%, depending on the flavor.
One of the lowest-sugar Odwalla bars is Peanut Crunch: One bar (62 grams weight) contains 260 calories, 8 grams protein, 3 grams fiber, 7 grams fat (1.5 g saturated fat) and 26% calories from sugar. (Journal as a meal-replacement protein bar.)
Power Bar Harvest
These bars tend to have 7 grams of protein and 4 grams of fiber per bar, and their percentage of calories from sugar hovers around 30%. Fat content tends to be 4-5 grams, while saturated fat ranges from 0.5 to 2 grams per bar.
One flavor that's pretty low in sugar and saturated fat is Cherry Crunch: One bar (65 grams weight) contains 240 calories, 7 grams protein, 4 grams fiber, 4 grams of fat (0.5 g saturated fat) and 30% calories from sugar. (Journal as a meal-replacement protein bar.)
Kashi Go Lean
These bars, which contain whole grains, bran, and soy protein concentrate, score high in fiber and protein. But the sugar and saturated fat are high -- around 47% calories from sugar and 3 grams of saturated fat per bar.
One of the best-tasting flavors is Oatmeal Raisin Cookie: One bar (78 grams weight) contains 280 calories, 13 grams protein, 6 grams fiber, 5 grams of fat (3 grams saturated fat) and 47% calories from sugar. (Journal as a meal-replacement protein bar.)
Luna Bars (made with soy protein)
Luna bars score great for protein and sugar, but their fiber doesn't get to the 3-grams-or-more level. Most of the flavors have 2 grams of fiber, 10 grams of protein, around 27% calories from sugar, and 4.5 grams of fat (3.5 grams of saturated fat) per bar.
One of the best tasting Luna flavors (even my pre-teen girls love it) is Nutz Over Chocolate: One bar (48 grams weight) contains 180 calories, 10 grams of protein, 2 grams of fiber, 4.5 grams fat (2.5 grams of saturated fat) and 27% calories from sugar. (Journal as 1 cup low-fat yogurt, sweetened.)