Effectiveness of supplementary blended flour based on chickpea and cereals for the treatment of infants with moderate acute malnutrition in Iran: A randomized clinical trial.

BACKGROUND: Despite the decreasing rate of under nutrition children in recent years overall, the negative affect in growth and development make it as a main concern in the world. Applying an available and appropriate supplementary food is a major approach in treating children with Moderate Acute Malnutrition (MAM).
OBJECTIVE: To compare the effectiveness of a new supplementary blended flour (containing chickpea, rice, wheat and barley, named Shadameen) in combination with multivitamin/mineral supplement and nutritional counseling versus multivitamin/mineral supplement and nutritional counseling alone, in the treatment of children with MAM.
METHODS: This randomized controlled trial study was conducted at Heshmatiyeh Hospital in Sabzevar city in Iran, from January 2016 to December 2016. Seventy infants, aged 9 to 24 months with MAM who were referred from urban health centers to the hospital clinic were included. They were randomly assigned to receive, for about 3 months, either multivitamin / mineral supplement and nutritional counseling alone or in combination with an extra supplementary blended food. We analyzed weight, length, weight for length Z score (WLZ), weight for age Z score (WAZ) and length for weight Z score (LAZ), along with recovery rate and adverse events among the two groups. The data were analyzed using SPSS version 16. We used statistics, Chi-square, independent t-test, and Fisher's exact test for the analyses of primary and secondary outcomes.
RESULTS: The food supplementation infant's mean weight and WLZ and WAZ were greater compared with the other group (0.81±0.29 gr and 0.55±0.33 gr, p=0.002), (0.36±0.36 and 0.02±0.52, p=0.003), (0.40±0.33 and 0.09±0.37, p=0.001). The recovery rate in the food supplemented group was significantly higher than the other group (68.4%, 31.6%, p=0.001). No adverse reactions were observed. There were no significant differences in LAZ at the end of the study between the two groups (p=0.53).
CONCLUSION: This study showed that Shadameen in combination with multivitamin/mineral and counselling therapy can be more effective in decreasing the wasting rate of children with MAM than vitamin/mineral and counseling therapy alone. TRIAL REGISTRATION: The trial was registered at the Iranian Registry of Clinical Trials (http://www.irct.ir) with the Irct ID: IRCT2015040921670N1. FUNDING: This study was financially supported by the vice chancellor for research office, Mashhad University of Medical Sciences.

1. Introduction

Pediatric malnutrition (undernutrition), described as a state of imbalance between nutrient requirements and intake, leads to deficits of protein, energy or micronutrients, affecting growth and development negatively (1). Malnutrition is considered as one of the leading causes of morbidity and mortality in children under the age of five in developing countries (2). According to a World Health Organization estimation in 2014, globally, 50 million children under five years of age were wasted and the wasting rate was 7.5 percent (3, 4). Statistics from Iran, in 2007, reported 5.9% moderate and 1.6% severe wasting, 12.7% moderate and 3.9% severe stunting prevalence in under 6-year old children in South Khorasan (5). Undernutrition refers to acute malnutrition (wasting), chronic malnutrition (Stunting), kwashiorkor, marasmus, marasmic kwashiorkor and micronutrient deficiencies. Anthropometric variables are used for definition of malnutrition (6). Malnutrition can be classified as moderate or severe in children under five years of age. Moderate malnutrition or moderate acute malnutrition (MAM) is defined as a weight for height or length Z score (WHZ, WLZ) between -2 and -3. Severe malnutrition or severe acute malnutrition (SAM) is defined as a WHZ of below -3 or a mid-upper arm circumference (MUAC) of less than 115 mm, or the presence of bilateral edema (6, 7). Inadequate food intake, which is one of the immediate causes of malnutrition, could be reversed by food interventions. These interventions include two broad approaches. In the first approach, nutritional counseling is given to families when they have access to all foods needed for feeding their children. Using special recipes made with locally available ingredients and home processing of foods, such as soaking, germination, malting, and fermentation, increase the nutritional content of family food. The other approach (externally supplementary feeding programs) are practicable where food availability is inadequate (8). A review of implemented programs by a number of agencies or local governments has showed that, for the treatment of MAM, generally, there is a greater emphasis on providing food supplements than giving nutritional counseling to improve locally available family foods (8, 9). Two main categories of externally provided food supplements include lipid-based nutrient supplements (LNS), which are as ready-to-use therapeutic food (RUTF) with a high lipid content, and blended food supplements which are mixtures of different food ingredients such as corn, soya, oils, sugar, legumes or others (8). Many studies were conducted to evaluate different ingredients’ effectiveness on malnutrition treatment (10–14). Multivitamins/minerals and counseling therapy are generally applied for malnutrition treatment in children in Iran. Although many nutritional interventions were conducted on childhood malnutrition (15), till now, there has been no study on a supplementary food with locally available nutritional ingredients for malnutrition treatment in Iran. A blended food formulated with a mixture of chickpea, barley, wheat, rice and sugar has been introduced in Traditional Persian Medicine to treat wasting. In the present randomized controlled trial, we compared the effects of blended food supplement (named as Shadameen) on treatment of MAM. The results of this study could help us to access a native food supplement for decreasing wasting rate.

2. Material and Methods

2.1. Study design

This study was a randomized, investigator-blinded (single blind), controlled clinical trial that that assessed the treatment of MAM in two parallel groups of children for a period of 84 days. The study was conducted from January 2016 to December 2016.

2.2. Participants

The research children population was selected from urban areas of Sabzevar, Iran. Sabzevar is a city in the north east of Iran with a population of over 364,553. Children are routinely brought to health centers by mothers for evaluating their growth charts based on a planned schedule with the health ministry of Iran. Children aged 9 to 24 months were screened and assessed primarily by health workers, for having criteria of MAM (−2> WLZ ≥ -3) according to Iran pediatrics standard growth charts in 17 main urban health centers. These health centers are located in different areas of the city and cover the city’s total population through their health services. Children who had suspicion of MAM were referred by health workers to the pediatric clinic of Heshmatiyeh Hospital in Sabzevar city for evaluation of any diseases by a physician. Heshmatiyeh is a specialty and general university hospital. This hospital is the referral center of the eastern area of Khorasan Razavi province, and has a specialized pediatrics ward and clinic.

2.3. Selection criteria

The inclusion criteria for participation in this study were: 1) age between 9 to 24 months, 2) confirmed satisfaction of parents with participating in the study, and 3) presence of criteria of MAM (−2> WLZ ≥ -3). The exclusion criteria were any acute or chronic illness, food allergy, congenital abnormality or severe malnutrition [weight-for-length Z-scores (WLZ) or length- for- age Z-score LAZ ≤ -3] in children.

2.4. Sampling

2.4.1. Sample size

The planned sample size for the study was 30 infants per group calculated from the expected difference in the primary outcome, i.e. weight gain, among those provided Shadameen or those not provided it. This sample size would be sufficient to detect at least 300 mg mean difference in weight gain (expected according to the previous studies) between the two groups, at a significance level of 0.05 with 80% power with an expected SD of 200mg. Given the assumption of dropouts during the study time, this sample size was added by up to 15%, so finally, 35 children were considered for each group.

2.4.2. Sampling method

After primary physical examination of children who were referred to the hospital clinic by the physician, initial laboratory tests were requested to rule out any underlying disease. A trained investigator who was blinded to the child’s specified group, assessed anthropometric indicators, using standard methods: weight was measured with a Seca 334 digital scale to the nearest 5 g, length was measured in triplicate to the nearest 0.1 cm with a measuring rod with Seca baby scales in lying position. Only children with no acute or chronic illness, food allergy, congenital abnormality or severe malnutrition [weight-for-length Z-scores (WLZ) or length-for-age Z score (LAZ) ≤ -3] were included. The mothers of children who met enrollment criteria gave verbal and written consent before randomization.

2.5. Blinding and allocation

Children were randomly allocated into two different groups. The intervention group received a blended supplementary food in addition to multivitamins/mineral supplement and nutritional counselling therapy (group 1 or Shadameen), while the other group (group 2) received only multivitamins/mineral supplement and nutritional counseling therapy. The investigator who performed the clinical assessments was blinded to the child’s specified group. The children and mothers could not be blinded because one group did not offer supplementary foods.

2.6. Data collection

On enrollment, an interview was conducted on each child’s demographic characteristics, appetite and the 24-hour diet recall with mothers. Nutrition counseling was also provided to all mothers in a session at the beginning of the study. Ferrous sulfate drop and Zincovit B syrup were distributed in amounts sufficient for 2 weeks during intervention period. The blended food supplement which was prepared in packages of 1000 grams was given to the mothers with a recipe once every two weeks. This food must be served with milk as a porridge. Children returned every 2 weeks for follow-up for up to 6 visits, at each time, anthropometric measurements were repeated, adverse event reports were taken and additional supplementary food and Ferrous sulfate and Zincovit B were distributed for the next two weeks.

2.7. Interventions

The blended supplementary food was contained chickpea, barley, wheat, rice and sugar in equal proportion, so 200 mg of each gradient was needed for providing 1000 mg of the blended food. The powder form food supplement was prepared in packages of 1000 grams, given to the mothers with a recipe once every two weeks. Mothers were requested to serve 70 grams of this food supplement twice a day, as a gruel prepared with milk and cooked the mixture for at least 10 min, to be consumed in addition to the usual home diet. Ferrous sulfate drop (Amin Esfahan, Iran) prescribed as 15 drops per day (0.6 ml) and Zincovit B (Alborz Darou, Iran) syrup prescribed as 5 ml per day. Each 15 drops has 15 mg Iron and each 5 ml of Zincovit B contains 5mg Zinc, 5mg Vitamin B1, 1.8mg Vitamin B2, 1.6mg Vitamin B6, and 16 mg Nicotinamide. The micronutrient and protein content of the Shadameen is shown in Table 1. Children returned every 2 weeks for follow-up for up to 6 visits, at each time, anthropometric measurements were repeated, adverse event reports were taken and additional supplementary food and Ferrous sulfate and Zincovit B were distributed for the next two weeks. We gave the parents a daily usage report form of Shadameen and requested them to bring it to every follow-up visit.

Table 1

Nutrients provided in 70 g Shadameen for children, in comparison to World Health Organization/Food and Agriculture Organization (WHO/FAO) Recommended Nutrient Intakes (RNI)(16)

Nutrient	Unit	Shadameen	WHO/ FAO RNI
			7–12month	12–36months
Dry mass of supplementary food	gr	67.69
Moisture	gr	2.3	-	-
Energy	kcal	272.63	-	-
Protein	gr	9.73	10.5	11.9
Fat	gr	1.75	35%energy1	25–35% energy1
Carbohydrate	gr	8.05	-	-
Dietary fiber	gr	0.93	-	-
Vitamin A	mg	0.148	400	400
Vitamin B1	mg	1.54	0.3	0.5
Vitamin B2	mg	0.14	0.4	0.5
Vitamin B3	mg	0	4	6
Vitamin B6	mg	4.2	0.3	0.5
Vitamin B12	mg	0	0.7	0.9
Vitamin C	mg	27.16	30	30
Vitamin D	mg	0.282	5	5
Vitamin E	mg	0.009	2.7	5
Calcium	mg	39.48	400	500
Iodine	mg	0	90	90
Iron	mg	3.5	18.62	11.62
Magnesium	mg	45.08	54	60
Phosphorus	mg	147.35	-	-
Potassium	mg	119.63	-	35103
Selenium	μg	0.0004	10	17
Zinc	mg	3.36	8.444	8.344

Gradual reduction from 40–60% E in o-6 months, depending on physical activity, to 35% E in 6–24 m0nths and 25–35% E in 2–18 years (17);

RNI for an assumed bioavailability of 5%;

Recomended for children more than 2 years of age (18);

RNI for low bioavailability

2.8. Outcome

Primary outcomes included rates of gain in weight, length and Z-score weight-for-length changes. Secondary outcomes were recovery proportion and adverse events.

2.9. Data analysis

Anthropometric indexes were based on the WHO's 2006 Child Growth Standards (19), calculated by using Anthro v 3.2.2 (WHO) (21). Data were analyzed with SPSS software version 16.0 (SPSS, Inc., Chicago, IL, USA). We used per protocol method for analyzing data. A comprehensive analysis of potential confounders at baseline was performed to assess the extent, if any, of baseline treatment group imbalances for sex and family income, breastfeeding, weight-for-Length Z score (WLZ), maternal education, parity, and site. Normality was tested with the Kolmogorov-Smirnov test. In cases of normality, independent-samples t-test was used, while without normality, Mann-Whitney test was used. Pearson Chi-square test was used to analyze nominal variables. When more than 20% of the table’s expected frequency were below 5, comparison between groups were made, using Fisher’s exact test for nominal variables. P-values <0.05 were considered to be statistically significant.

2.10. Research ethics

The proposal for this thesis research was approved by the Ethics Committee of Mashhad University of Medical Sciences. The Ethics Committee approved the study with the number IR.MUMS.REC.1394.528 on October 7, 2015, the enrollment of patients began on January 25, 2015, and the study continued until December 30, 2016. This study was registered in the Iranian Registry of Clinical Trials (irct.ir) with the ID: IRCT2015112125168N1 in January 22, 2016. The participant parents were informed about the aim and object of the study, oral and written informed consent in native language (Persian) was obtained from all parents prior to the study. We were also committed to allow all of the participants to leave the study anytime they wanted.

3. Results

A total of 142 children who were suspicious to MAM were referred to the hospital clinic by health workers, and 70 of them were eligible for recruitment. The final number of participants was 35 in each group of the study; 33 (94.2%) and 31 (88.5%) completed the study for the Shadameen (group 1) and control (group 2), respectively (Figure 1). The main reasons for dropout were unwillingness of mothers and withdrawing from the study because of lack of time to bring the infant to the clinic. There were no differences among the 2 groups at baseline for age, sex, anthropometry, appetite, education and employment of parents, family income or number of children in the family (Table 2).

Figure 1

CONSORT flowchart of participants.

Table 2

Characteristics of infants in baseline

Variable	Groups
	Group 1 (vitamin & mineral+ counselling)	Group 2 (Shadameen + vitamin& mineral)	p-value
Maternal education level [n ( %) low literacy]	10 (28.5)	14(40)	0.53
Mather employed [n (%)]	3 (8.5)	0 (0.0)	0.24
Father employed [n (%)]	29 (82.8)	32 (91.4)	0.46
Family income (10000 Rials)	935±55	922±43	0.94
No. of children	1.64±0.69	1.71±0.71	0.64a
Eating mothers milk Up to now [n (%)]	31 (88.5)	28(80)	0.51
Appetite [n (%) low appetite]	29 (82.8)	31 (88.5)	0.71
Infants sex [n (%) female]	23 (65.7)	20 (57.1)	0.46
Infants age (mean)	13.40±3.34	12.80±3.38	0.54a
Infants weigh at the beginning of study	7.20±0.62	7.05±0.64	0.31
Infants length at the beginning of study	71.83±3.57	70.92±3.32	0.27
Infants WLZ score at the beginning of Study	−2.10±0.077	−2.12±0.13	0.26a
Infants WAZ score at the beginning of study	−2.43±0.27	−2.5±0.26	0.24
Infants LAZ score at the beginning of study	−1.78±0.49	−1.86±0.43	0.46

U mann-whitney test

No adverse reactions were observed. At the end of the 84 days intervention period, the Shadameen group showed a superior rate of weight gain, WLZ and WAZ increase in comparison with the other group (Table 3). The mean weight, WLZ and WAZ increments between baseline and end of intervention were significantly greater in the Shadameen group (0.81±0.29 gr) (p=0.002), (0.36±0.36) (p=0.003), (0.40±0.33) (p=0.001) compared with 0.55±0.33 gr, 0.02±0.52 and 0.09±0.37 in group 2. Although the mean length and LAZ increments between baseline and end of intervention was greater in the Shadameen group (3.36±1.04 cm) (0.17±0.390) in comparison to group 2, this rate did not differ significantly (3.10±1.02 cm) (p=0.31), (0.10±0.39) (p=0.53). The recovery rate was considered as number of children who had WLZ greater than −2 at the end of intervention period. The proportion of children who recovered was significantly higher in the Shadameen group [26 n (68.4%)] compared with [12 n (31.6%)] the other group (p=0.001).

Table 3

Differences in anthropometric indices from baseline to end

Variable	Groups		p-value
	Group 1 (vitamin & mineral)	Group 2 (Shadameen + vitamin& mineral)
Mean weight increments (gr)	0.55±0.33	0.81±0.29	0.002*
Mean length increments (cm)	3.10±1.02	3.36±1.04	0.31
Mean Z score weight for height increments	0.02±0.52	0.36±0.36	0.003*
Mean Z score weight for age increments	0.09±0.37	0.40±0.33	0.001*
Mean Z score length for age increments	0.10±0.39	0.17±0.39	0.53
Recovery [n (%)] ( Z score weight for Height> −2	12 (31.6)	26 (68.4)	0.001*

4. Discussion

The result of this study showed that given blended supplementary food in addition to vitamin-mineral therapy and nutritional counseling is more effective in treating moderate wasting than vitamin-mineral therapy and nutritional counseling alone. Legumes and cereal mixtures are recommended for supplementary feeding of malnourished children (22). Chickpea has a high nutrient composition with a good source of high quality protein similar to that of soya. It is a good source of carbohydrates, minerals (calcium, phosphorous, magnesium, potassium and iron), vitamins (thiamine and niacin) and a low amount of lipids which are rich in nutritionally important unsaturated fatty acids such as linoleic and oleic acid (23–25). Many studies have been carried out to examine effectiveness of supplementary blended food with different ingredients such as corn/soya, rice/soya, for treatment of MAM (26, 27). Most of them compared RUTF with supplementary blended foods (11). Recovery rate in Shadameen (68.4%) is almost same as some other similar studies. Nackers et al. examined the effects of two food supplements on weight gain and recovery of 451 children with MAM in Niger. One group of children received conventional CSB (corn/ soy-blend), and the other group received RUTF (Plumpy’nut; Nutriset). Children who received CSB (corn/ soy-blend) had a recovery rate of 64.4% compared with 79.1% in RUSF (p<0.001) (28). Although weight, WAZ and WLZ changes were significant in our study, Shadameen did not significantly change length increment. Many studies have shown significant differences in linear growth by intervention with more than 6 months duration (29, 30). Dietary quality can modify the relationship between food quantity and linear growth (31), thus type of the supplementary food ingredients may have a role in linear growth. Despite the little amount of fat in Shadameen, this supplement is rich in protein and vitamin B1, B2, B6, Magnesium, Phosphorus and partly in zinc. Investigation of potential use of chickpeas in infant follow-on formula, found that the protein content was high and that they meet the amino acid requirements of the WHO/FAO protein reference for children at 0–24 month’s (32). Protein and zinc have a strong effect on linear growth. Assuming that our supplementary food is rich in protein, these findings emphasize the likely multifactorial basis of stunting in young children. The duration of intervention in our study was only 84 days. More long-term intervention may be needed to influence length increment positively. As with our results, studies with the same intervention duration (3 months), showed no significant differences in LAZ (33). Unlike most previous studies conducted with other supplementary foods, our blended food was not fortified, so it could be deduced that differences between the two groups, may be the real effect of this blended supplementary food. Most interventions in MAM treatment were done in rural areas in which food is insecure (27, 33, 34). Our study was carried out in urban areas so the differences between food security may affect the results. Zinc and multivitamin supplementation did not reduce the rate of wasting, stunting and underweight in Tanzanian children aged 6–84 (35). Adding zinc to a Lipid-Based Nutrient Supplements did not change its effect on stunting or wasting (36). A systematic review on educational interventions about child feeding showed a modest effect on weight and linear growth (31). We found a small increase in WAZ and WHZ in group 2. As a limitation, we did not have a non-intervention group, so the exact efficacy of intervention in group 2 was not clear. Inability to measure the exact dietary intake and supplementary food consumption at home was another limitation in this study. Usage of Shadameen may not perform on the basis of a given recipe, and there is also the probability of share food. A home visit by health care workers might improve intake of food and rate of weight gain. No evidence of allergy was found in this study.

5. Conclusions

This study showed that Shadameen in combination with vitamin-mineral and counselling therapy, can be more effective in decreasing the rate of wasting in children with MAM than vitamin-mineral and counselling therapy alone. Since ingredients of this food supplement are cheap and easily available, its use in the treatment of child malnutrition can be very remedial. Future studies with large sample size and long term intervention are needed.