Dietary Reference Intakes for Vitamin B7 (Biotin) in Japan (per day)

Males AI
0-5 months 4 μg
6-11 months 10 μg
1-2 years 20 μg
3-5 years 20 μg
6-7 years 25 μg
8-9 years 30 μg
10-11 years 35 μg
12-14 years 50 μg
15-17 years 50 μg
18-29 years 50 μg
30-49 years 50 μg
50-69 years 50 μg
70 years and older 50 μg
Females AI
0-5 months 4 μg
6-11 months 10 μg
1-2 years 20 μg
3-5 years 20 μg
6-7 years 25 μg
8-9 years 30 μg
10-11 years 35 μg
12-14 years 50 μg
15-17 years 50 μg
18-29 years 50 μg
30-49 years 50 μg
50-69 years 50 μg
70 years and older 50 μg
Pregnancy AI
12-14 years 50 μg
15-17 years 50 μg
18-29 years 50 μg
30-49 years 50 μg
50-69 years 50 μg
Lactation AI
12-14 years 50 μg
15-17 years 50 μg
18-29 years 50 μg
30-49 years 50 μg
50-69 years 50 μg
Reference: Dietary Reference Intakes for Japanese. Ministry of Health, Labour and Welfare, Japan, 2015