The “low cal” flavor of the lineup, FRS’ Peach Mango uses sucralose in place of the sugar and stevia found in the other varieties. It also uses mango and white grape juice, which help the product achieve its very natural tasting mango flavor. However, it has a lot more aftertaste than the other two flavors. It’s hard to discern whether this is sweetener aftertaste or the functional ingredients, but the more you drink, the easier it is to tolerate. And tolerate is about all we could do while trying this product. Reducing the calories from 90 to 25 doesn’t seem like a meaningful difference to us, especially given the big difference in flavor. Functionally, the product has the same levels of vitamins, quercetin, and catechins as the other flavors. Like most beverage brands’ diet varieties, they’ve chosen to use a white backdrop, which makes the text on the can harder to read than on the other flavors. It’s definitely the least visually appealing of the line. Overall, we really like the use of mango puree, but otherwise, we’d pass on this variety.