If you buy a food for protein, make it pass a simple test. Divide its calories by ten. The answer is the minimum protein grams we want to see. A 150 calorie snack should have at least 15 g of protein.
This is FEERO's one to ten buying rule. It is a quick test for protein efficiency, not a legal claim or a score for every food in your diet.
Do the quick check
Use protein and calories from the same column on the label. Both per serving and per 100 g work. Do not mix the two columns.
A food with 200 calories needs at least 20 g protein to pass. One with 120 calories needs at least 12 g. A 250 calorie bar with 20 g falls short of the 25 g target.
There is no need for a long debate with the wrapper. Divide by ten and compare.
See why the smaller number wins
Take two made up bars. Bar A has 15 g protein and 120 calories. Bar B has 20 g and 250 calories.
Bar A beats the rule. Bar B fails it. Bar A gives 12.5 g protein per 100 calories. Bar B gives 8 g. If efficient protein is the job, Bar A wins.
Protein provides about four calories per gram. That means our rule requires at least 40% of energy from protein. In this example, Bar A reaches 50% and Bar B reaches 32%. [1]
Five extra grams do not justify ignoring 130 extra calories.
Use the rule for the right job
This rule screens foods you choose mainly for protein. It does not mean fruit, rice or vegetables need to pass. They have other jobs.
Once a snack passes, check its protein source in our label guide. A ratio does not tell you the amino acids, taste or price.
FEERO's development brief sets a stricter goal of at least 50% of calories from protein. That is a target for the product being developed, not a confirmed result. The principle is already clear. Make each calorie work harder for the reason you bought the food.