Ancel Benjamin Keys (1904–2004): His early works and the legacy of the modern Mediterranean diet

2017 ◽  
Vol 28 (3) ◽  
pp. 139-147 ◽  
Author(s):  
Basil H Aboul-Enein ◽  
William C Puddy ◽  
Joshua Bernstein

Culturally congruent dietary patterns have evolved with geographic and societal traditions and can be traced as far back as pre-Hellenistic Greece. Today, the modern Mediterranean diet (MDiet) is recognized internationally as an anti-obesogenic cardioprotective dietary model consisting of plant-based foods native to the Mediterranean basin, fish, olive oil, and an active lifestyle. With the assumption that obesity and heart disease rates adversely affected life expectancy, the MDiet was identified by Dr Ancel Keys as a primary characteristic among people-groups largely immune to these trends. Following extensive research on how food quality affected human performance, Keys engineered the largest ecologic investigation of dietary habits and their effects on heart disease and longevity known as the Seven Countries Study. A new understanding of how regionally and culturally specific diets affected entire populations led to the introduction of the MDiet to the global public health community. This historiographic portrait of Dr Keys describes his humble beginnings, highlights critical points in his career, discusses his seminal research into diet and culture as protective agents, and details his legacy as the pioneer of the modern MDiet.

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 700.2-700
Author(s):  
G. De Luca ◽  
G. Natalello ◽  
G. Abignano ◽  
C. Campochiaro ◽  
D. Temiz Karadağ ◽  
...  

Background:Gastrointestinal involvement(GI) is a common feature of systemic sclerosis(SSc) and can be highly disabling, representing a major cause of morbidity and reduced quality of life(QoL). The impact of dietary habits on GI symptoms, mood and QoL has not been extensively evaluated.Objectives:To evaluate the adherence to the Mediterranean Diet(MD) in an Italian multicenter cohort of SSc patients, and its impact on GI symptoms and other disease features, depression, anxiety and overall QoL.Methods:Consecutive SSc(ACR/EULAR2013) patients from 4 Italian cohorts were enrolled. Dietary habits and adherence to the MD were assessed using the 14-item MEDAS and QueMD questionnaires. Presence and severity of depressive/anxious symptoms and QoL were evaluated with the Hospital Anxiety and Depression Scale(HADS) and the SSc-HAQ(S-HAQ). GI symptoms were assessed with the Reflux Disease Questionnaire(RDQ) and the UCLA SCTC GI Tract 2.0 questionnaire(USG). Associations with patients’ lifestyle, disease characteristics, and nutritional status were explored.Results:265 patients (94.7% females; age 55.8±13.6years; disease duration 9.1±7.0years; diffuse SSc 31.8%; Scl70 + 35.8%;ulcers 23.4%;ILD 29.4%;BMI 23.7±4.4 Kg/m2; obese 11.3%,overweight 23.4%,underweight 4.9%) were enrolled.Overall MD adherence was moderate(7.5±1.9) according to MEDAS and it correlated with QueMD score(4.53±1.96)(R=.371,p<0.001). MD adherence was optimal in 39 patients(14.7%), more frequently from Central-Southern Italy(p=0.036); 189 patients(71.3%) had a good and 37(14.0%) a poor MD adherence.GI symptoms were moderate/severe according to USG in 37(14.0%) patients(USG:0.41±0.40), and heartburn was the most common GI symptom(35.2%). The prevalence of significant anxiety and depression was 24.1% and 17.0%.An inverse correlation was found between MD adherence and mood disturbances at HADS(MEDAS; R=-0.181,p=0.04), work impairment(QueMD;R=-0.247,p=0.005) and reduced QoL, both for GI (constipation at USG: R=-0.133,p=0.032) and general S-HAQ items(bowel:R=-0.181,p=0.04;severity R=-0.202,p=0.01;Raynaud:R=-0.217,p<0.001;ulcers: R=-0.207,p=0.01). MD adherence directly correlated with lung function(MEDAS;R=0.181,p=0.023 for FVC and R=0.170,p=0.03 for DLCO). Patients with MD optimal adherence had lower HADS depression(p=0.04) and S-HAQ scores(HAQ,p=0.04; Raynaud,p=0.005; ulcers,p=0.02) and lower work impairment and lost work time(p=0.03). No significant correlation emerged between MD adherence and BMI, or specific symptoms. Depression and anxiety directly correlated with the severity of reported upper GI symptoms according to both scales (RDQ-GERD:R=0.261,p=0.001; USG:R=0.263,p<0.001) and general S-HAQ items (HAQ: R=0.136,p=0.032;severity R=0.233,p<0.001;bowel: R=0.135,p=0.04;breath: R=0.133,p=0.03; ulcers: R=0.132,p=0.037). Results were confirmed after exclusion of psychiatric(11.7%) and fibromyalgic(15.5%) patients.Conclusion:Unsatisfactory MD adherence is associated with a low mood, impaired QoL, work impairment, GI and vascular symptoms in Italian SSc patients. The promotion of a healthy lifestyle could positively impact on QoL and disease status of SSc patients.References:[1]Gnagnarella P, et a. NMCD 2018. DOI: 10.1016/j.numecd.2018.06.006[2]Jaeger VK et al. PLoS One, 2016.[3]Dinu M et al. Eur J Clin Nutr 2018. doi: 10.1038/ejcn.2017.58.[4]Khanna D, et al.Arthritis Rheum. 2009. doi: 10.1002/art.24730.Acknowledgments:GILSDisclosure of Interests:Giacomo De Luca Grant/research support from: SOBI, Speakers bureau: SOBI, Novartis, Pfizer, MSD, Celgene, Gerlando Natalello: None declared, Giuseppina Abignano: None declared, Corrado Campochiaro Speakers bureau: Novartis, Pfizer, Roche, GSK, SOBI, Duygu Temiz Karadağ: None declared, Maria De Santis: None declared, Elisa Gremese Speakers bureau: Abbvie, BMS, Celgene, Jannsen, Lilly, MSD, Novartis, Pfizer, Sandoz, UCB, Silvia Laura Bosello Speakers bureau: Abbvie, Pfizer, Boehringer, Lorenzo Dagna Grant/research support from: Abbvie, BMS, Celgene, Janssen, MSD, Mundipharma Pharmaceuticals, Novartis, Pfizer, Roche, SG, SOBI, Consultant of: Abbvie, Amgen, Biogen, BMS, Celltrion, Novartis, Pfizer, Roche, SG, and SOBI


Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1721
Author(s):  
Valentina Ponzo ◽  
Marianna Pellegrini ◽  
Chiara D’Eusebio ◽  
Fabio Bioletto ◽  
Ilaria Goitre ◽  
...  

The aim of this observational study was investigating the possible correlation between adherence to the Mediterranean diet (MeD) and SARS-COV-2 infection rates and severity among healthcare professionals (HCPs). An online self-administrated questionnaire (evaluating both MeD adherence and dietary habits) was filled out by HCPs working in Piedmont (Northern Italy) from 15 January to 28 February 2021. Out of the 1206 questionnaires collected, 900 were considered reliable and analyzed. Individuals who reported the SARS-COV-2 infection (n = 148) showed a significantly lower MeD score, with a lower adherence in fruit, vegetables, cereals, and olive oil consumption. In a logistic regression model, the risk of infection was inversely associated with the MeD score (OR = 0.88; 95% CI 0.81–0.97) and the consumption of cereals (OR = 0.64; 0.45–0.90). Asymptomatic individuals with SARS-COV-2 infection reported a lower intake of saturated fats than symptomatic; individuals requiring hospitalization were significantly older and reported worse dietary habits than both asymptomatic and symptomatic individuals. After combining all symptomatic individuals together, age (OR = 1.05; 1.01–1.09) and saturated fats intake (OR = 1.09; 1.01–1.17) were associated with the infection severity. HCPs who reported a SARS-COV-2 infection showed a significantly lower MeD score and cereal consumption. The infection severity was directly associated with higher age and saturated fat intake.


Nutrients ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 759
Author(s):  
Valeria Raparelli ◽  
Giulio Romiti ◽  
Valeria Spugnardi ◽  
Marco Borgi ◽  
Roberto Cangemi ◽  
...  

Background: The reasons behind low adherence to the Mediterranean diet (Med-diet) are still not entirely known. We aimed to evaluate the effect of biological (i.e., sex-related) and psycho-socio-cultural (i.e., gender-related) factors on Med-diet adherence. Methods: Baseline Med-diet adherence was measured using a self-administered questionnaire among adults with ischemic heart disease (IHD) from the EVA (Endocrine Vascular Disease Approach) study. A multivariable analysis was performed to estimate the effect of sex- and gender-related factors (i.e., identity, roles, relations, and institutionalized gender) on low adherence. Results: Among 366 participants (66 ± 11 years, 31% women), 81 (22%) adults with low adherence demonstrated higher rates of diabetes, no smoking habit, lower male BSRI (Bem Sex Role Inventory) (median (IQR) 4.8 (4.1 to 5.5) vs. 5.1 (4.5 to 5.6) and p = 0.048), and higher Perceived Stress Scale 10 items (PSS-10) (median (IQR) 19 (11 to 23) vs. 15 (11 to 20) and p = 0.07) scores than those with medium-high adherence. In the multivariable analysis, only active smoking (odds ratio, OR = 2.10, 95% confidence interval, CI 1.14 to 3.85 and p = 0.017), PPS-10 (OR = 1.04, 95% CI 1.00 to 1.08, and p = 0.038) and male BSRI scores (OR = 0.70, 95% CI 0.52 to 0.95, and p = 0.021) were independently associated with low adherence. Conclusions: Male personality traits and perceived stress (i.e., gender identity) were associated with low Med-diet adherence regardless of the sex, age, and comorbidities. Therefore, gender-sensitive interventions should be explored to improve adherence in IHD.


2018 ◽  
Vol 119 (6) ◽  
pp. 674-684 ◽  
Author(s):  
Maya Schulpen ◽  
Piet A. van den Brandt

AbstractThe evidence on a cancer-protective effect of the Mediterranean diet (MD) is still limited. Therefore, we investigated the association between MD adherence and lung cancer risk. Data were used from 120 852 participants of the Netherlands Cohort Study (NLCS), aged 55–69 years. Dietary habits were assessed at baseline (1986) using a validated FFQ and alternate and modified Mediterranean diet scores (aMED and mMED, respectively), including and excluding alcohol, were calculated. After 20·3 years of follow-up, 2861 lung cancer cases and 3720 subcohort members (case-cohort design) could be included in multivariable Cox regression analyses. High (6–8) v. low (0–3) aMED excluding alcohol was associated with non-significantly reduced lung cancer risks in men and women with hazard ratios of 0·91 (95 % CI 0·72, 1·15) and 0·73 (95 % CI 0·49, 1·09), respectively. aMED-containing models generally fitted better than mMED-containing models. In never smokers, a borderline significant decreasing trend in lung cancer risk was observed with increasing aMED excluding alcohol. Analyses stratified by the histological lung cancer subtypes did not identify subtypes with a particularly strong inverse relation with MD adherence. Generally, the performance of aMED and World Cancer Research Fund/American Institute for Cancer Research dietary score variants without alcohol was comparable. In conclusion, MD adherence was non-significantly inversely associated with lung cancer risk in the NLCS. Future studies should focus on differences in associations across the sexes and histological subtypes. Furthermore, exclusion of alcohol from MD scores should be investigated more extensively, primarily with respect to a potential role of the MD in cancer prevention.


Nutrients ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 1197
Author(s):  
Luana Izzo ◽  
Antonio Santonastaso ◽  
Gaetano Cotticelli ◽  
Alessandro Federico ◽  
Severina Pacifico ◽  
...  

The World Health Organization has declared the coronavirus outbreak a Public Health Emergency of International Concern; the outbreak has led to lockdowns in several parts of the world, and sudden changes in people’s lifestyles. This study explores the impact of the first coronavirus disease 2019 (COVID-19) pandemic period on dietary habits, lifestyle changes, and adherence to the Mediterranean diet among the Italian population, through an online questionnaire, conducted from April to May 2020, involving 1519 participants. The 14-point Mediterranean Diet Adherence Screener (MEDAS) highlighted a medium Mediterranean diet adherence in 73.5% of responders, which principally included the younger population, aged 18–30 years (p < 0.05). In regards to changes in eating habits, 33.5% of responders declared an influence of the pandemic period on nutritional practice. A decrease in alcohol consumption was reported by 81% of responders, while an increase in frozen food consumption was reported by 81.3% of responders. In addition, 58.8% reported positive weight modification (40.8%, +1–3 kg); physical activity reduction was reported for 70.5% of responders. Our study contributes toward amplifying the investigation on the dietary habits and changes of the Italian population during the COVID-19 lockdown, although the pandemic is ongoing. Similar studies should be performed around the world to understand how the emergency has impacted people’s habits.


Nutrition ◽  
2019 ◽  
Vol 61 ◽  
pp. 21-31 ◽  
Author(s):  
Hannah L. Mayr ◽  
Audrey C. Tierney ◽  
Teagan Kucianski ◽  
Colleen J. Thomas ◽  
Catherine Itsiopoulos

2018 ◽  
Vol 22 (2) ◽  
pp. 375-381 ◽  
Author(s):  
Audrey C Tierney ◽  
Ioannis Zabetakis

AbstractObjectiveIn Ireland, the major causes of death are CVD. The current Irish healthy eating guidelines and food pyramid primarily advocate a low-fat diet. However, there is overwhelming scientific evidence for the benefits of a Mediterranean diet (Med Diet) in the prevention and management of metabolic disease as well as improving overall health and well-being. In the current commentary, the rationale to incorporate the principles of the Med Diet into the Irish dietary guidelines is presented.DesignPerspectives of authors.SettingLocal and international.SubjectsPopulations in Europe, North America and Australia.ResultsAdopting components of the Med Diet presents a more evidence-based approach to updating the current Irish dietary guidelines. Experience and lessons from other non-Mediterranean countries show that it could be a feasible and effective solution to improving the dietary habits of the Irish population to prevent and mange chronic diseases.ConclusionsPolicies and programmes to address perceived barriers to the Med Diet’s implementation and uptake in non-Mediterranean countries should be promoted.


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