Inclusion/exclusion criteria at recruitment (home visit):  Non-pregnant, non-lactating women of reproductive age  Inclusion criteria:  Non-pregnant non-lactating women of reproductive age (15 - 49 years); Signed the informed consent form (or in the case of adolescents 15-17 years of age, unmarried and still living with their parents, assent provided from the index participant and consent from a parent or guardian) ; Planning to remain in the study area for the next 9 months; Willing to use study-provided bouillon in household cooking for the next 9 months; Not planning to become pregnant during the next 9 months .  Exclusion criteria:  Severe illness warranting immediate hospital referral; COVID-19 diagnosis or exposure in the previous two weeks [individual may repeat eligibility assessment after deferral]; Presence of morbidity symptoms suggesting COVID-19 infection (fever [temperature > 38°C], chills/shaking, dry cough, shortness of breath or difficulty breathing, loss of smell or taste within the past 72 hours) [individual may repeat eligibility assessment after deferral]; Chronic severe medical condition (e.g. malignancy) or congenital anomalies requiring frequent medical attention or potentially interfering with nutritional status; Reported chronic medical condition requiring frequent blood transfusion (e.g. severe forms of thalassemia) experienced by the participant or any household members; Unable to provide informed consent due to impaired decision-making abilities; Current participation in a clinical trial; Reported shrimp, wheat, milk, soy, eggs, celery, fish, or mollusk allergy, or a previous adverse reaction to bouillon by the participant or any member of their household.  Children 2-5 years of age (24-59 mo)  Inclusion criteria:  Child 2-5 years of age (24-59 mo: 104 weeks to 259 weeks at baseline; approx. 102 weeks to 256 weeks at recruitment); Signed informed consent for the child's participation from a parent or guardian; Planning to remain in the study area for the next 9 months; Caregiver willing to use study-provided bouillon in household cooking for the next 9 months.  Exclusion criteria:  Severe illness warranting immediate hospital referral; COVID-19 diagnosis or exposure in the previous two weeks [individual may repeat eligibility assessment after deferral]; Presence of morbidity symptoms suggesting COVID-19 infection (fever, [temperature > 38°C], chills/shaking, dry cough, shortness of breath or difficulty breathing, loss of smell or taste within the past 72 hours) [individual may repeat eligibility assessment after deferral]; Mid-upper arm circumference < 11.5 cm; Chronic severe medical condition (e.g. malignancy) or congenital anomalies requiring frequent medical attention or potentially interfering with nutritional status; Reported chronic medical condition requiring frequent blood transfusion (e.g. severe forms of thalassemia) experienced by the participant or any household members; Current participation in a clinical trial; Reported shrimp, wheat, milk, soy, eggs, celery, fish, or mollusk allergy, or a previous adverse reaction to bouillon by the participant or any member of their household.  Lactating women  Inclusion criteria:  Non-pregnant women of reproductive age (15 - 49 years), currently breastfeeding a child who is 4-18 months of age (17 to 78 weeks at baseline; approximately 15 to 73 weeks at recruitment); Signed the informed consent form (or in the case of adolescents 15-17 years of age, unmarried and still living with their parents, provide assent from the index participant and consent from a parent or guardian); Planning to remain in the study area for the next 3 months; Planning to breastfeed for the next 3 months; Willing to use study-provided bouillon in household cooking for the next 3 months; Not planning to become pregnant during the next 3 months.  Exclusion criteria:  Pregnancy (determined by self-report); Severe illness warranting immediate hospital referral; COVID-19 diagnosis or exposure in the previous two weeks [individual may repeat eligibility assessment after deferral]; Presence of morbidity symptoms suggesting COVID-19 infection (fever[temperature > 38°C], chills/shaking, dry cough, shortness of breath or difficulty breathing, loss of smell or taste within the past 72 hours) [individual may repeat eligibility assessment after deferral]; Chronic severe medical condition (e.g. malignancy) or congenital anomalies requiring frequent medical attention or potentially interfering with nutritional status; Reported chronic medical condition requiring frequent blood transfusion (e.g. severe forms of thalassemia) experienced by the participant or any household members; Unable to provide informed consent due to impaired decision-making abilities; Current participation in a clinical trial; Reported shrimp, wheat, milk, soy, eggs, celery, fish, or mollusk allergy, or a previous adverse reaction to bouillon by the participant or any member of their household.  Exclusion criteria at screening visit for vitamin A isotope dose (WRA only):  Non-pregnant, non-lactating women of reproductive age  Hemoglobin < 80 g/L; Severe illness warranting immediate hospital referral; COVID-19 diagnosis or exposure in the previous two weeks [individual may repeat eligibility assessment after deferral]; Presence of morbidity symptoms suggesting COVID-19 infection (fever [temperature > 38°C], chills/shaking, dry cough, shortness of breath or difficulty breathing, loss of smell or taste within the past 72 hours) [individual may repeat eligibility assessment after deferral]; Recent diarrhea [≥3 liquid or semiliquid stools in 72 hours]) [individual may repeat eligibility assessment after deferral]; Reported consumption of vitamin A-rich foods (e.g., liver) in the previous 24 hours [individual may repeat eligibility assessment after deferral]; Pregnancy (as ascertained via urine pregnancy test for human chorionic gonadotropin on the day of isotope dosing); Incomplete consumption of vitamin A isotope dose; Positive malaria RDT on the day of isotope dosing [individual may repeat eligibility assessment after deferral]; CRP > 5 mg/L on the day of isotope dosing [individual may repeat eligibility assessment after deferral].  Exclusion criteria at baseline visit:  Non-pregnant, non-lactating women of reproductive age  Hemoglobin < 80 g/L; Severe illness warranting immediate hospital referral; COVID-19 diagnosis or exposure in the previous two weeks [individual may repeat eligibility assessment after deferral]; Presence of morbidity symptoms suggesting COVID-19 infection (fever [temperature > 38°C], chills/shaking, dry cough, shortness of breath or difficulty breathing, loss of smell or taste within the past 72 hours) [individual may repeat eligibility assessment after deferral]; Pregnancy (determined by self-report); Participant and/or household not willing to use study-provided bouillon in household cooking for the next 9 months; Low household use of study-provided bouillon during run-in period  Children 2-5 years of age  Hemoglobin < 70 g/L; Severe illness warranting immediate hospital referral; COVID-19 diagnosis or exposure in the previous two weeks [individual may repeat eligibility assessment after deferral]; Presence of morbidity symptoms suggesting COVID-19 infection (fever [temperature > 38°C], chills/shaking, dry cough, shortness of breath or difficulty breathing, loss of smell or taste within the past 72 hours) [individual may repeat eligibility assessment after referral]; Severe acute malnutrition at baseline (weight-for-height Z-score < -3 SD or bilateral oedema); Caregiver and/or household not willing to use study-provided bouillon in household cooking for the next 9 months; Low household use of study-provided bouillon during run-in period  Lactating women  Severe illness warranting immediate hospital referral; COVID-19 diagnosis or exposure in the previous two weeks [individual may repeat eligibility assessment after deferral]; Presence of morbidity symptoms suggesting COVID-19 infection (fever [temperature > 38°C], chills/shaking, dry cough, shortness of breath or difficulty breathing, or loss of taste or smell within the past 72 hours) [individual may repeat eligibility assessment after deferral]; Pregnancy (determined by self-report); Cessation of lactation, or planning to discontinue breastfeeding in the next three months; Participant and/or household not willing to use study-provided bouillon in household cooking for the next 3 months; Low household use of study-provided bouillon during run-in period  Exclusion criteria during course of the intervention:  Non-pregnant, non-lactating women of reproductive age  Pregnancy (determined by self-report); Pregnancy (as ascertained via urine pregnancy test for human chorionic gonadotropin at pre-endline isotope dosing).  Lactating women  Cessation of lactation (determined by self-report); Pregnancy (determined by self-report).