Knowledge, Attitudes, and Use of Protein Supplements among Saudi Adults: Gender Differences

Protein supplement intake by non-athlete gym attendees in Jazan region: misconceptions and gender differences

BACKGROUND

Protein supplements (PSs) have gained widespread popularity among non-athlete gym attendees, who often perceive them as essential tools for muscle growth and recovery. However, misinformation surrounding PSs may lead to inappropriate use and negative health consequences. This study aimed to assess whether non-athlete gym attendees using PSs have greater misconceptions than non-users while also examining the prevalence of PS consumption and gender differences.

METHODS

A cross-sectional study of 387 participants in the Jazan region was conducted. Customers of 10 fitness centers were screened with a questionnaire comprising questions to measure PS misconceptions. Participants were divided into PS users and non-users. Data were analyzed using descriptive statistics and the Chi-square test to assess the associations between variables. An independent t-test was used to compare the PS Misconception Index Score between the two groups.

RESULTS

A total of 82.4% of non-athlete gym attendees consumed at least one PS. Our findings revealed a significant association between gender and PS utilization (P<0.001), with a higher proportion of females (90.8%) consuming PS than males (77.6%). PS users had a significantly lower PS Misconception Index Score than non-users (26.8 vs. 28.3; P=0.006), indicating that PS users had a higher number of misconceptions. The internet (41.37%) and coaches (gym instructors/trainers) (34.48%) were the most common sources of information about PSs, with muscle gain being the primary reason for consumption (82.75%).

CONCLUSIONS

PS consumption is highly prevalent among non-athlete gym attendees in the Jazan region, with many individuals having misconceptions about their benefits and potential risks. Targeted educational interventions are needed to promote evidence-based knowledge about PSs for gym attendees, as well as for coaches, given that they were among the primary sources of information on supplements.

Awareness of Healthy Lifestyle Among Elderly Population During Aging in Al-Ahsa, Saudi Arabia

INTRODUCTION

The research explores healthy aging among elderly individuals globally and in Saudi Arabia. Factors like health services, lifestyle, and chronic diseases affecting seniors are examined. However, there is a gap in culturally relevant research, particularly in Arabic-speaking countries. This study aims to understand elderly individuals' knowledge, attitudes, and practices regarding healthy lifestyles for effective functional preservation in aging.

METHODOLOGY

A cross-sectional study was conducted in the eastern part of Saudi Arabia, specifically Al-Ahsa, from February to May 2023. The Raosoft calculator was employed to determine a sample size of at least 384 participants. The data was analyzed using SPSS.

RESULTS

Regarding the associations between knowledge levels and demographics, education significantly impacts knowledge (p=0.003). Retired respondents exhibit higher knowledge (50.4%) compared to those with jobs (10.4%) (p=0.002). Smoking has a significant impact on knowledge (p=0.012). Regarding the opinions on elderly care, respondents agree on the importance of fresh fruits and vegetables (52.2%), increased protein intake (64.3%), less fat (83.5%), and regular exercise (44.3%). Supplements' necessity is disagreed upon (95.7%). Living with family is favored (67.8%), and elderly self-management is recognized (60.9%). Significant differences are seen in fruit and vegetable consumption (p=0.001), less fat usage (p=0.000), exercise habits (p=0.000), smoking (p=0.000), and using just salt in cooking (p=0.000).

CONCLUSION

Study findings underscore the importance of education in influencing healthy behaviors and informed choices, with education levels significantly impacting knowledge levels. Respondents' preferences for balanced diets, exercise, and self-management reflect a positive trend toward embracing healthy aging principles. Notably, the study identifies disparities between knowledge groups in various lifestyle factors, highlighting the potential of education to drive positive changes in behaviors.

Authentication of protein, fat, carbohydrates, and total energy in commercialized high protein sports foods with their labeling data

The popularity of high-protein sports food items among athletes and the bodybuilding community has risen dramatically. This study aimed to authenticate the reported per serving food label content of protein, fat, carbohydrate, and total energy in commercially available high-protein sports foods available in Egyptian markets. A cross-sectional study was performed on a total of forty-five samples of nine products that included protein bars, cookies, vegan bars, puffs, whey protein, protein drinks, peanut butter, pancake mix, and Greek yogurt. Protein and fat analysis were done according to Kheldahl and Folich methods, respectively, while carbohydrate was calculated by difference. Total energy was calculated according to their content. A significant (p < 0.001) difference was found between the laboratory-assessed content and the reported food label values in protein, carbohydrate, and energy. Protein sport food products had significantly lower protein content (11.6 ± 4.67) obtained from laboratory measurement than the label reported value (17.17 ± 7.22). The fat content in vegan protein was 149.3% higher than the label values (1.67 vs. 0.67 g/serving). The mean fat content per serving of 30 out of 45 samples was significantly higher than the food label values in the bar (37.8%), puffs (32.7%), vegan protein (149.3%), and protein drinks (28.6%). These differences may result in compromised performance and undesired fat gain, as opposed to a desired increase in muscle mass, which could compromise the desired impact of the consumed sports foods.

Whey Protein Dietary Supplements: Metal Exposure Assessment and Risk Characterization

Protein supplements (PS) are trendy foods, especially those made from whey. In addition to providing protein, these products are a source of metals, providing essential elements (Na, K, Mg, Ca, Mo, Mn, Fe, Co, Cu, and Zn) and other potentially toxic elements (Al, B, Sr, V Ba, and Ni). In this study, 47 whey PS samples were analyzed for mineral elements by ICP-OES, and their dietary exposures were assessed for three consumption scenarios. Elements found in higher concentrations were K (4689.10 mg/kg) and Ca (3811.27 mg/kg). The intake of 30 g PS (average recommended amount/day) provides about 20% of the established reference value (NRI) for Cr (18.30% for men and 25.63% for women) and Mo (26.99%). In a high daily consumption scenario (100 g PS/day) and when the maximum concentrations are considered, Cr, Zn, Fe, Mo, and Mg dietary intakes of these metals exceed the daily recommended intakes and could pose a risk. The daily intake of 30, 60, and 100 g of whey PS for 25 years does not pose a health risk since the hazard index (HI) is less than one in these consumption scenarios, and the essential elements contributing most to HI are Co, followed by Mo and Cr. It is recommended to improve the information to the consumers of these new products. Furthermore, to help in the management and prevention of these potential health risks, it would be advisable to improve the regulation of these dietary supplements and their labeling.

Efficacy and safety assessment of protein supplement - micronutrient fortification in promoting health and wellbeing in healthy adults - a randomized placebo-controlled trial

Protein supplements are extensively used for muscle building, weight loss, recovery from exercise, improving endurance & cardio-performance. Major challenge with protein supplement is undigested protein and impaired gut health which results in nausea, dehydration, diarrhea, constipation, indigestion, stomach pain, and decreased appetite. Several studies have linked plant protein with reduced metabolic syndrome incidence. Probiotics can improve gut health as well. The objective of the study is to assess the efficacy and safety of protein supplement in promoting health and wellbeing in healthy adults. The present trial is a double blind, multi-center, randomized, placebo controlled, clinical trial involving 60 healthy individuals. The treatment duration was of 90 days. The subjects were randomized to receive either protein supplement treatment or placebo control. Protein supplement significantly improved quality-of-life score by 85.76%, VO₂ max by 42.92%, distance covered in 6 minutes, 100% individuals with at least 25% reduction in low energy events as compared to the control group. Protein supplement treatment reduced body weight (1.94 kg), waist circumference (2.46 cm), body mass index, waist circumference, hip circumference and body fat. Remarkable and significant improvement in digestive and sleep quality score, percent skeletal muscle was observed among protein supplement treated group. There were no clinically significant changes in hematological, biochemical and vital parameters; indicating safety of protein supplement. Present study concluded that protein supplement is safe and efficacious in weight management, improving high energy events, aerobic capacity, quality of life, digestive behavior score and sleep quality. This study ensures consumers about safety and effectiveness of protein supplement.