No. Protein grams and calories do not tell you what the order costs. A value ranking needs current, market-specific prices for the exact order, with a clear treatment of taxes and fees. Without that evidence, a nutrition ranking should stay a nutrition ranking.
Why the missing price matters
Imagine two fictional orders with 30 g and 40 g protein. If both cost 10 units, their protein costs are about 0.33 and 0.25 per gram. If the second costs 16 instead, its ratio becomes 0.40. More protein wins in the first price scenario and loses in the second.
Use the exact order
The source price must include the items whose nutrition you are counting. A standalone entrée’s price cannot represent a bowl plus paid add-ons. Delivery and local promotion prices may also differ from the restaurant counter price.
Label a sensitivity example honestly
You can explore fictional prices to show how the arithmetic works, as above. Clearly separate those assumptions from a claimed restaurant offer. Do not publish the result as “best value” unless the underlying price coverage and comparison scope support that statement.
FDA’s menu-labeling resource explains the nutrition context; it does not provide prices. GetMacros’ protein-cost calculator accepts prices you supply. The finder’s nutrient records should never be treated as a verified price database. When a value question cannot be answered from the available evidence, the useful next step is to obtain the missing price, not to turn calories into a proxy for cost.
Sources and example boundaries
- FDA: menu labeling
Written nutrition information and menu-labeling scope.
All food figures and prices in the worked example are invented to explain the method. They are not restaurant nutrition, tested recipes, shopping prices or personal dietary advice. Use the current label for the product you actually have.