Thesis
Assessment of Soy (Glycine max L.) Intake Using Semi-Quantitative Food Frequency Questionnaire (SQ-FFQ) in
Soybean (Glycine max L.), a species of legumes, is a well-known source of highquality
plant-based protein widely cultivated in Asia. An intake of ≥25 g/day of soy protein
has been reported to be associated with a lot of health outcomes. In Indonesia, soybean is
one of the most favored protein sources. In order to understand the frequencies and
amounts of macro- and/or micronutrients from soy intake and its health benefits, dietary
assessment is thereby necessary. This cross-sectional study aimed to assess daily soy-based
products intake and daily soy protein intake using a soy SQ-FFQ in Indonesian adults. Study
participants were healthy Indonesian adults aged 18-55 years old who were regular soy
consumers (≥1x a month). The selected participants (n = 109) were administered to a selfreported
soy SQ-FFQ during the past one month. This study revealed that 25% of
participants complied to the daily soy protein intake recommendation of ≥25 g/day with a
median (IQR) intake of 59.18 (33.39-83.49) g/day, while the other 75%, with a median (IQR)
intake of 7 (2.39-12.07) g/day, did not. In conclusion, a majority of the participants involved
are suggested to increase their daily soy protein intake in order to adhere to the
recommendation for daily protein intake and daily energy intake.
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