Majid M Alkhalaf

Dr. Majid M Alkhalaf

Saudi food and drug authority, Riyadh, Ar Riyāḑ, Saudi Arabia
orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 June 2023 in Food Science & Nutrition
Verified
Journal Article
Open access
NANajla Saud Alharbi
Najla Saud Alharbi
RARawdah M. Akamsiei
Rawdah M. Akamsiei
LALama A. Almaiman
Lama A. Almaiman
MAMostafa A. Al‐Samti
Mostafa A. Al‐Samti
HAHamad S. Al‐Mutairi
Hamad S. Al‐Mutairi
MBMohammed A. Bineid
Mohammed A. Bineid
Early childhood exposure to heavy metals like arsenic (As), cadmium (Cd), and lead (Pb) through baby foods unfolds many concerns about their toxic effects on growth and health. In this study, occurrence and dietary intake of As, Cd, and Pb in stage 1 infant formula (0–6 months), stage 2 infant formula (7–12 months), cereal‐based meals, and biscuits were estimated. First, the levels of As, Cd, and Pb were determined with ICP‐MS, followed by the calculation of estimated daily intake (EDI), target hazard quotient (THQ), and hazard index (HI) for As and Cd, and margin of exposure (MoE) for Pb. Mean levels of As, Cd, and Pb were the highest in cereal‐based meals and biscuits as 15.5–11.1, 5.18–8.76, and 35.2–53.8 μg/kg, respectively. Newborns to 6 months old infants were estimated to be the highest exposed population to Cd and Pb (0.08 and 0.36 μg/kg bw/day), while infants aged 7–12 months old were exposed the highest to As. Based on the THQ, HI, and MoE findings, the current exposure levels from the selected baby foods to As, Cd, and Pb pose low potential chronic risks to both infant age groups. This research provides a roadmap for future investigations in chemical contaminants often detected in baby foods consumed regularly by Saudi infants.

19 April 2022 in Toxins
Verified
Journal Article
Open access
PDF file
RDRouaa Daou
Rouaa Daou
MHMaha Hoteit
Maha Hoteit
KBKhlood Bookari
Khlood Bookari
MAMajid M Alkhalaf
Majid M Alkhalaf
SNSahar Nahle
Sahar Nahle
Andre EL KHOURYAndre EL KHOURY
Andre EL KHOURY
Aflatoxin M1 (AFM1) is a salient metabolite that can be used to assess Aflatoxin B1 (AFB1) exposure in humans and animals. The carcinogenic potency of AFB1 and AFM1 was severely reported. The aims of this study were (1) to survey the contamination level of AFM1 in the most traded infant powdered formula brands (IPF) (n = 42) along with the AFB1 level in under 5’s children food brands (biscuits, cornflakes, and cereals) (n = 42) and (2) to assess the estimated daily intake (EDI), the hazard quotient (HQ) and the margin of exposure (MOE) of AFM1 among infants (0–12 months) in Lebanon. All of the samples were analyzed using ELISA technique. AFB1 was below detection limit in all of the children’s food brands samples. Out of 42 IPF samples 9.5% were AFM1-positive in the range of 29.54–140.16 ng/L and exceeded the maximum tolerable limit (MTL) set by the European commission (25 ng/kg). The overall average contamination level was 5.72 ± 0.014 ng/L. The EDI of AMF1 for male was in the range of 0.37–0.78 ng/kg/b.w./day and 0.40–0.87 ng/kg/b.w./day for females. Similarly, the HQ calculation resulted in an average of 3.05 for males and 3.28 for females. MOE calculations were far lower from 10,000 in both genders which indicates a high risk of genotoxicity and carcinogenicity. Our findings show that AFM1’s EDI, HQ and MOE scored high among Lebanese infants. As infants consume more IPF relative to their body weight, the persistence of IPF with high AFM1 levels threatens their health. Thus, infant’s exposure risk to AFM1 in IPF should be a continuous focus of attention.

16 January 2023 in Nutrients
Verified
Journal Article
Open access
PDF file
AAAreej Alkhaldy
Areej Alkhaldy
OAOmar abdualaziz Alhumaidan
Omar abdualaziz Alhumaidan
SASarah Mohammed Alkhunein
Sarah Mohammed Alkhunein
MAMajid M Alkhalaf
Majid M Alkhalaf
KBKhlood Bookari
Khlood Bookari
JAJamila M. Arrish
Jamila M. Arrish
No study has investigated the effect of the COVID-19 pandemic on the public’s interest in using energy labelling on restaurant menus. This study explores the effects of the COVID-19 pandemic on the public interest in using energy labelling on restaurant menus and meal delivery applications and the impact of energy-labelling availability on food choices during the COVID-19 pandemic in Saudi Arabia. An online questionnaire was completed by 1657 participants aged ≥ 18 years. Before the COVID-19 pandemic, 32% of customers visited a restaurant 2–4 times/week. However, during the pandemic, 35% of customers visited a restaurant only once per week. There was no difference in interest in reading energy labelling or using meal delivery applications before and during the pandemic. During the COVID-19 pandemic, about 55% of restaurant customers reported that they had noticed energy labelling, with 42% of them being influenced by the energy-labelling information. Regarding energy information on food delivery applications, 40% of customers noticed energy labelling when using the applications, with 33% of them being affected by the energy labelling. Customer interest in reading about energy on restaurant menus during the pandemic did not change significantly from the level of interest before the pandemic. The interest expressed by the public in using the energy labelling was low both before and during the COVID-19 pandemic.

19 November 2022 in Nutrients
Verified
Journal Article
Open access
PDF file
KBKhlood Bookari
Khlood Bookari
JAJamila Arrish
Jamila Arrish
SZSara Zaher
Sara Zaher
MAMajid M Alkhalaf
Majid M Alkhalaf
MAMudi H Alharbi
Mudi H Alharbi
MHMaha Hoteit
Maha Hoteit
COVID-19’s intimidating spread has challenged the resilience of the global health systems, causing shifts in the practices of healthcare workers, including dietitians. The current study aimed to assess the change in dietitians’ practices and duties in hospitals/clinics after the commencement of COVID-19 pandemic. This cross-sectional study was conducted in five Arab countries between November 2020 and January 2021. A convenient sample of 903 dietitians filled an online self-administered questionnaire to meet the study aims. Nearly 40.0% of the dietitians experienced a change in their workload and caseload during the pandemic. Besides, 18.7% of the dietitians had been assigned additional tasks in their facilities. Nearly half the dietitians (46.9%) had started giving remote nutrition consultations, associated with a 21% drop in the number of dietitians offering in-person consultations (p = 0.001). Approximately 58.9% of the dietitians provided nutrition care to COVID-19 patients, with 48.4% having access to personal protective equipment. Moreover, 17.0% of dietitians supported COVID-19 patients with enteral and parenteral nutrition. In addition, 45.0% of dietitians reported that managing COVID-19 was challenging given that it was a newly discovered condition.

Haleama SabbahHaleama Sabbah
Haleama Sabbah
ZTZainab Taha
Zainab Taha
RQRadwan Qasrawi
Radwan Qasrawi
EAEnas A Assaf
Enas A Assaf
Leila Cheikh IsmailLeila Cheikh Ismail
Leila Cheikh Ismail
TGThe Regional Corona Cooking Survey Group
The Regional Corona Cooking Survey Group
Insufficient physical activity is considered a strong risk factor associated with non-communicable diseases. This study aimed to assess the impact of COVID-19 on physical (in)activity behavior in 10 Arab countries before and during the lockdown. A cross-sectional study using a validated online survey was launched originally in 38 different countries. The Eastern Mediterranean regional data related to the 10 Arabic countries that participated in the survey were selected for analysis in this study. A total of 12,433 participants were included in this analysis. The mean age of the participants was 30.3 (SD, 11.7) years. Descriptive and regression analyses were conducted to examine the associations between physical activity levels and the participants’ sociodemographic characteristics, watching TV, screen time, and computer usage. Physical activity levels decreased significantly during the lockdown. Participants’ country of origin, gender, and education were associated with physical activity before and during the lockdown (p < 0.050). Older age, watching TV, and using computers had a negative effect on physical activity before and during the lockdown (p < 0.050). Strategies to improve physical activity and minimize sedentary behavior should be implemented, as well as to reduce unhealthy levels of inactive time, especially during times of crisis. Further research on the influence of a lack of physical activity on overall health status, as well as on the COVID-19 disease effect is recommended.

11 November 2022 in Tobacco Induced Diseases
Verified
Journal Article
Open access
Haleama SabbahHaleama Sabbah
Haleama Sabbah
EAEnas A Assaf
Enas A Assaf
ZTZainab Taha
Zainab Taha
RQRadwan Qasrawi
Radwan Qasrawi
Leila Cheikh IsmailLeila Cheikh Ismail
Leila Cheikh Ismail
OGon behalf of the Regional CORONA COOKING Survey Group*
on behalf of the Regional CORONA COOKING Survey Group*
Introduction: Tobacco smokers are at high risk of developing severe COVID-19. Lockdown was a chosen strategy to deal with the spread of infectious diseases; nonetheless, it influenced people’s eating and smoking behaviors. The main objective of this study is to determine the impact of the...