Table 2.

Number (n) and percentage of participants (%) with a correct answer for each of the nine protein knowledge statements by the two knowledge level groups (n = 1180).

	Lower Knowledge Group # (n = 257)		Higher Knowledge Group (n = 923)		p-Value
Relation protein and health	n	%	n	%
1 “You need protein in the diet for repairing bones and muscles”	167	65.0	887	96.1	<0.001
2 “You need protein in the diet for building body cells”	163	63.4	865	93.7	<0.001
3 “You need protein in the diet for energy”	167	65.0	801	86.8	<0.001
4 “You will experience loss in muscle mass if you do not consume enough protein”	79	30.7	777	84.2	<0.001
Protein content of foods
5 “Cooked lean beef has more protein than the same amount of cooked tomato”	80	31.1	662	71.7	<0.001
6 “Whole milk (100 mL) has more protein than cheese (100 g)” *	68	26.5	584	63.3	< 0.001
Recommended intake of protein
7 “The human body is good at storing protein to use it later, it is thus not necessary to consume a steady amount of protein every day” *	47	18.3	574	62.2	<0.001
8 “Health experts recommend people of my age to consume less protein” *	47	18.3	558	60.5	<0.001
9 “One meal per day with a good protein source is sufficient” *	17	6.6	283	30.7	<0.001

^# Excluding participants who indicated that they do not know what dietary protein was. * False statements (i.e., “No” is the correct answer to these statements). p-values are based on chi-square tests.