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. 2023 Apr 3;10:1116105. doi: 10.3389/fnut.2023.1116105

Table 2.

Total energy intake, protein intake, and National Health and Nutrition Survey dietary intake of protein foodsa by age.

Age group 20s 30s 40s 50s 60s 70s 80s+
Total energy intake (kcal/day)c 1900 (664) 1859 (558) 1939 (607) 1918 (581) 1972 (586) 1945 (549) 1750 (517)
Protein intake (g/day)b 71 (27) 68 (24) 72 (26) 70 (24) 75 (24) 76 (26) 66 (23)
Food group (g/day)
Beef, lamb and pork 81 (77) 75 (70) 86 (73) 72 (72) 67 (65) 59 (61) 48 (55)
Chicken and other poultry 49 (68) 40 (63) 43 (68) 34 (57) 26 (49) 21 (45) 18 (39)
Eggs 39 (40) 38 (38) 40 (38) 40 (38) 44 (39) 45 (39) 38 (37)
Fish 51 (58) 51 (62) 53 (65) 59(63) 78 (74) 89 (83) 74 (64)
Legumes 47 (73) 45 (61) 52 (73) 65 (91) 77 (87) 76 (85) 65 (72)
Nuts 1.3 (4.2) 2.9 (17) 2.1 (7.3) 3.0 (12) 3.2 (9.4) 3.2 (9.8) 2.2 (6.2)

aAverage (standard deviation) of dietary intake was referenced by the National Health and Nutrition Survey 2019. bProtein intake was referenced by the NHNS 2019. cTotal energy intake was referenced by the NHNS 2019.