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. 2024 Aug 31;16(17):2909. doi: 10.3390/nu16172909

Table 3.

Dietary protein/Phe intakes presented by gender and age groups.

Sex and Age
(Number of
Patients)
Mean ± SD (Median; Range) WHO/FAO/UNU 2007
Safe Levels for
Total Protein
% of Mean Total
Protein Intake Meeting
Recommendations
Phe Natural Protein Protein
Equivalent from
Protein Substitute
Total Protein
mg/day mg/kg/day g/day g/kg/day g/day g/kg/day g/day g/kg/day g/kg/day
Female
(n = 666)
881 ± 875
(500; 0–5820)
20 ± 25
(13; 0–219)
19 ± 19
(11; 0–181)
0.5 ± 0.6
(0.3; 0.0–4.9)
35 ± 26
(32; 0–120)
1.0 ± 0.7
(1.0; 0.0–4.6)
57 ± 25
(55; 0–167)
1.6 ± 0.7
(1.5; 0.0–5.8)
NA NA
Male
(n = 657)
1027 ± 1200
(550; 0–9009)
29 ± 34
(12; 0–215)
22 ± 24
(12; 0–182)
0.5 ± 0.6
(0.4; 0.0–4.2)
35 ± 25
(31; 0–113)
1.0 ± 0.7
(1.0; 0–5.0)
60 ± 28
(56; 0–192)
1.8 ± 0.7
(1.6; 0.1–6.4)
NA NA
p-value 0.218 0.019 0.250 0.019 0.830 0.013 0.850 <0.001
<2 y
(n= 47)
318 ± 206
(250; 0–1297)
34 ± 35
(29; 0–162)
7 ± 5
(5; 0–30)
1.0 ± 0.7
(0.9; 0.0–3.5)
7 ± 9
(7; 0–54)
1.1 ± 1.1
(1.1; 0.0–5.3)
17 ± 9
(15; 6–58)
2.4 ± 1.3
(2.4; 0.0–6.4)
1.14 1–1.31 2 210–183%
2–5 y
(n = 213)
521 ± 468
(352; 100–3802)
29 ± 32
(21; 0–219)
11 ± 10
(8; 0–78)
0.8 ± 0.7
(0.5; 0.0–4.9)
19 ± 15
(19; 0–60)
1.3 ± 0.9
(1.4; 0.0–5.3)
33 ± 12
(32; 0–92)
2.2 ± 0.8
(2.2; 0.0–6.4)
0.94 234%
6–12 y
(n = 353)
750 ± 756
(450; 0–5360)
22 ± 25
(15; 0–206)
16 ± 17
(10; 0–181)
0.5 ± 0.6
(0.3; 0.0–4.2
36 ± 22
(34; 0–106)
1.1 ± 0.7
(1.1; 0.0–3.3)
54 ± 18
(52; 10–115)
1.7 ± 0.6
(1.7; 0.0–4.2)
0.89 3–0.94 4 191–181%
13–18 y
(n = 268)
1301 ± 1349
(750; 0–9009)
20 ± 25
(11; 0–215)
27 ± 26
(17; 2–158)
0.5 ± 0.5
(0.3; 0.0–3.5)
47 ± 26
(48; 0–116)
0.8 ± 0.4
(0.8; 0.0–2.3)
75 ± 22
(8; 0–175)
1.3 ± 0.4
(1.2; 0.0–3.6)
0.84 5–0.89 6 155–146%
19–30 y
(n = 280)
1419 ± 1328
(900; 0–9009)
18 ± 19
(11; 0–123)
31 ± 28
(20; 0–182)
0.4 ± 0.4
(0.3; 0.0–2.5)
48 ± 25
(53; 0–110)
0.7 ± 0.4
(0.8; 0.0–1.6)
78 ± 24
(79; 0–182)
1.2 ± 0.4
(1.2; 0.2–2.5)
0.84 143%
31–40 y
(n = 107)
1377 ± 1027
(1148; 100–4725)
14 ± 13
(10; 0–62)
30 ± 23
(25; 4–105)
0.4 ± 0.3
(0.3; 0.0–1.8)
47 ± 26
(52; 0–120)
0.6 ± 0.4
(0.7; 0.0–1.3)
78 ± 23
(76; 0–143)
1.0 ± 0.3
(1.0; 0.1–2.0)
0.84 119%
≥41 y
(n = 55)
1255 ± 917
(750; 350–3750)
7 ± 11
(0; 0–53)
27 ± 20
(15; 7–75)
0.3 ± 0.3
(0.2; 0.0–1.1)
47 ± 24
(50; 0–106)
0.6 ± 0.3
(0.7; 0.0–1.2)
80 ± 22
(77; 35–192)
1.0 ± 0.3
(1.0; 0.4–2.1)
0.84 119%

Abbreviations: n—number; Phe—phenylalanine; SD—standard deviation; WHO—World Health Organization; FAO—Food and Agricultural Organization; UNU—United Nations University; NA—not applicable; y—years. 1 7–12 months, 2 0–6 months, 3 11–16 y, 4 1–10 y, 5 >16 y, 6 11–16 y.