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- Olive oil consumption confers protective effects on maternal-fetal outcomes: A systematic review of the evidencePublication . Cortez-Ribeiro, Anna Carolina; Meireles, Manuela; Ferro-Lebres, Vera; Almeida-de-Souza, JulianaBecause of the maternal diet's importance, numerous studies have examined the effects of olive oil on pregnancy outcomes. This study provides a systematic review that evaluates the evidence between olive oil consumption and maternal-fetal outcomes. We hypothesized that olive oil reduced the risk of adverse pregnancy complications. We searched Web of Science, Scopus, PubMed, and Biblioteca Virtual em Saúde electronic databases (October and November 2021). The keywords used were pregnancy, olive oil, and pregnancy outcomes. This review included all the available studies in English and Portuguese. The exclusion criteria were (1) unrelated to olive oil consumption, (2) other outcomes, and (3) animal studies. The review included 9 articles (6 experimental and 3 observational). In the maternal outcome studies (n = 6), a higher olive oil consumption was associated with a lower prevalence of gestational diabetes mellitus, preeclampsia, and cardiovascular risk. In the fetal outcome studies (n = 8), olive oil consumption was associated with a lower risk for small- or large-for-gestational-age infants. Olive oil consumption confers protective effects on pregnancy outcomes; however, further studies are needed that are specifically designed for the impact of olive oil consumption on maternal-fetal outcomes.
- Olive oil consumption and maternal-fetal outcomes: a systematic review of the evidencePublication . Cortez-Ribeiro, Anna Carolina; Meireles, Manuela; Ferro-Lebres, Vera; Almeida-de-Souza, JulianaNutrition plays a significant role during pregnancy. The risk of maternal-fetal complications decreases with a balanced eating pattern. For instance, the Mediterranean diet is correlated with improved health status and reduced risk of gestational diabetes, preeclampsia, hypertension, and pre-term birth. Olive oil is an essential component of this dietary pattern. Thus, the aim of this study was to systematically review the evidence between olive oil consumption and the risk of adverse maternal-fetal outcomes. Methodology: The study was guided by the
- Lifestyle changes among university students in Portugal during the COVID-19 pandemic: the finescop studyPublication . Cortez-Ribeiro, Anna Carolina; Ferro-Lebres, Vera; Arroyo-Izaga, Marta; Torheim, Liv Elin; Almeida-de-Souza, JulianaPrevious studies showed that the COVID-19 pandemic lockdown caused changes in lifestyle habits. However, there is limited information regarding the effects after the lockdown. This study aimed to assess self-reported lifestyle changes during the COVID-19 pandemic among students at the Polytechnic Institute of Bragança (Instituto Politécnico de Bragança (IPB)), Portugal. This research is part of the Food Insecurity among European University Students during the COVID-19 Pandemic (FINESCOP) study. METHODS: Students answered an online questionnaire on sociodemographic variables and lifestyle changes, including eating habits. This study was conducted between April 4 and May 16, 2022. The sample size was estimated using the Epidat 3.0 program, considering the total number of students enrolled during the 2020/21 academic year. RESULTS: The sample consisted of 377 students, 55.7% female, with a mean age of 23.1 ± 3.8 years. Consumption of sugar-sweetened beverages (p=0.002), meat and/or eggs (p<0.001), and processed meat (p=0.012) decreased. In the rest of the food groups, no significant differences were recorded. Participants reported an increase in the time spent in front of the screen for work/study (p<0.001), alcohol consumption (p=0.009), and smoking habits (p<0.001). Worsening sleep and poor physical and psychological health were also observed (p<0.001). Our findings revealed changes in lifestyle behaviors in students from the IPB during the COVID-19 pandemic. Effective strategies are needed to promote healthy lifestyles in this population.
- Postprandial glycemia after a high-rich carbohydrate meal: a randomized cross-over clinical trial on olive leaf tea effectPublication . Meireles, Manuela; Polck, Denise; Cortez-Ribeiro, Anna Carolina; Almeida-de-Souza, Juliana; Ferro-Lebres, VeraInfusions of olive leaves have been used in traditional herbal medicine as a way to treat and prevent many diseases, including diabetes. Olive leaves are naturally rich in oleuropein, and previous studies have shown the potential of oleuropein in mitigating diabetes and diabetes complications in vitro and in vivo. This study aimed to investigate the effect of natural olive leaves tea on postprandial glycemia in healthy volunteers, when ingested with a high-carbohydrate meal comparing with a placebo tea. The hypothesis present was that olive leaf tea would improve glycemic control and modulate postprandial glycaemia.
- Olive leaf tea impact on postprandial glycemia: a randomized cross-over trialPublication . Meireles, Manuela; Cortez-Ribeiro, A.C.; Polck, Denise; Almeida-de-Souza, Juliana; Ferro-Lebres, VeraThis study investigates the effect of olive leaf tea (OLT) on postprandial glycemia in healthy volunteers when ingested with a high-carbohydrate meal, compared with a placebo tea (CON). Healthy adults participated in a double-blind, randomized, placebo-controlled, and cross-over design trial receiving a high-rich carbohydrate meal with either 250 mL of OLT or CON at two different times after a washout period. The sequence order was randomized at a ratio of 1:1. Capillary blood glucose was measured in a 2 h period after ingestion. Eighteen participants were initially randomized. Of these, thirteen completed the trial and were analyzed. The consumption of OLT resulted in a delay in peak time (48.5 +/- 4.2 min vs. 35.7 +/- 4.0 min, p = 0.03) and a significant increase in glucose area under the curve compared to placebo (14,502.7 +/- 640.8 vs. 13,633.3 +/- 869.4 mg/dL center dot min, p = 0.03). Results are depicted as mean +/- SEM. The OLT and CON palatability were generally well accepted. No adverse effects were reported. OLT did not ameliorate a glycemic curve induced by carbohydrate-rich meal ingestion, suggesting that at least when ingested acutely in a single meal, OLT does not have antihyperglycemic effects. Future studies should account for chronic consumption providing a better understanding of glycemic regulation over time.
- Study protocol for Valor Barroso: a mixed-method approach to dietary–physical activity patterns in Barroso, PortugalPublication . Cortez-Ribeiro, Anna Carolina; Ribeiro, José Carlos; Alves, Maria José; Ferro-Lebres, VeraThis community-based mixed-methods study aims to evaluate the dietary habits and physical activity patterns of the Barroso population in northern Portugal. Methods: This study was divided into two phases. The quantitative phase will be a cross-sectional study involving 416 participants from different age groups, including children, adolescents, adults, and elderly individuals. Sociodemographic and clinical, including anthropometric measurements, blood pressure, and quality of life, will be collected. Physical activity will be assessed wGT3X+ Actigraph accelerometers and validated questionnaires, whereas dietary habits will be evaluated via food frequency questionnaires, 24-hour dietary recalls, and food diaries. In the qualitative phase, participants will be selected through stratified sampling and ethnographic analysis will be conducted through observations and semi-structured interviews to explore the cultural, social, and environmental factors influencing dietary habits and physical activity in the local population. Discussion: By integrating objective measures of physical activity and diet, such as accelerometers and validated questionnaires, with qualitative data on cultural and traditional practices, this study aims to provide a more comprehensive understanding of lifestyle behaviors in the region and their associations with health. Additionally, the study investigated how geographical, socioeconomic, and cultural contexts influence these dietary and physical activity behaviors. The conclusions drawn will help develop public health interventions to improve health outcomes in rural communities and will contribute to the development of more effective strategies for similar populations.