A typical four-biscuit pack of standard tea biscuits gives you about 14 g of refined carbohydrate, 5 g of fat, and 2 g of protein. The same weight in a whey protein biscuit lands closer to 12 g carbs, 4 g fat, and 8–10 g of protein — meaningfully different.
Protein at snack time blunts the post-meal blood-sugar curve, which means less of the late-afternoon crash that drives the next snack. Over a month, that's a non-trivial calorie shift.
What to watch for on labels: real whey listed in the first three ingredients, no hydrogenated fat, sweetener disclosed (stevia is preferable to sucralose for daily use).
