Nutrition labels over the years have come a long way. Heck, prior to 1990 nutrition labels weren’t even required!
One thing I want to examine is protein. In the image below, there are two different brands of whey protein isolate shown, Phat Muscle Project and another unnamed brand. On the surface, the label on the right looks like it’s a better option, with 30 grams of protein per serving, compared to the 25 grams from PMP.
However, when you factor in serving size, 30gms of protein/39 weighted gms is .77gm/gm, vs 25gms protein and 29 weighted grams, you can see that the PMP is actually a higher concentration of protein with .86gm/gm.
This means that not only are you getting more protein per serving, but the quality is also higher due to other ingredients and fillers (which you can even kind of see in the picture of ingredients). One exception to this rule is if there is something in the protein that offsets the concentration of whey purposefully.
While this example is protein, it is always worth taking a second look at the nutrition label to make sure you’re comparing apples to apples, or in this case, whey to whey.