Department of Social Medicine, Preventive Medicine and Nutrition, Medical School, University of Crete, Heraklion, Greece.
Laboratory of Evaluation of Human Biological Performance, School of Physical Education and Sport Science at Thessaloniki, Aristotle University of Thessaloniki, Thessaloniki, Greece.
Arch Osteoporos. 2019 Jun 27;14(1):68. doi: 10.1007/s11657-019-0625-y.
Christian Orthodox Church (COC) fasting is characterized by periodic abstinence from animal foods (including dairy products). We found that, despite this, older individuals adhering to COC fasting for decades did not differ in bone mineral density, bone mineral content, or prevalence of osteoporosis at five sites from non-fasting controls.
The present observational study investigated whether adherence to COC fasting, characterized by periodic abstinence from animal foods (including dairy products), affects bone health and the prevalence of osteoporosis in older individuals.
Participants were 200 men and women, of whom 100 had been following the fasting rules of the COC for a median of 31 years and 100 were non-fasters, all aged 50 to 78 years. Participants underwent measurements of bone mineral density (BMD) and bone mineral content (BMC) at the lumbar spine, right hip, left hip, right femoral neck, and left femoral neck; completed a 3-day food intake record and food frequency questionnaire; and provided blood samples for biochemical measurements.
Fasters did not differ from non-fasters in demographic characteristics, anthropometric measures, BMD, BMC, or prevalence of osteopenia or osteoporosis at any of the five sites measured (P > 0.05). Fasters had lower daily calcium intake than non-fasters (median 532 vs 659 mg, P = 0.010), daily protein intake (0.67 vs 0.71 g/kg, P = 0.028), and consumption of dairy and soy products (10.3 vs 15.3 servings per week, P < 0.001). Groups did not differ in serum calcium, vitamin D, or urea concentrations.
Despite lower calcium intake and lower consumption of dairy and soy products, older individuals adhering to COC fasting did not differ in BMD, BMC, or prevalence of osteoporosis from controls. Thus, periodic abstinence from dairy and, generally, animal products does not seem to compromise bone health in older individuals.
东正教禁食的特点是定期禁食动物食品(包括乳制品)。我们发现,尽管如此,坚持东正教禁食数十年的老年人在五个部位的骨密度、骨矿物质含量或骨质疏松症患病率方面与非禁食对照组没有差异。
本观察性研究旨在调查坚持东正教禁食(特点是定期禁食动物食品,包括乳制品)是否会影响老年人的骨骼健康和骨质疏松症的患病率。
参与者为 200 名男性和女性,其中 100 名遵循东正教禁食规则中位数为 31 年,100 名非禁食者,年龄均在 50 至 78 岁之间。参与者接受腰椎、右侧髋部、左侧髋部、右侧股骨颈和左侧股骨颈的骨密度(BMD)和骨矿物质含量(BMC)测量;完成 3 天的食物摄入量记录和食物频率问卷;并提供血液样本进行生化测量。
禁食者与非禁食者在人口统计学特征、人体测量指标、BMD、BMC 或五个部位的骨质疏松症或骨量减少的患病率方面没有差异(P>0.05)。禁食者的每日钙摄入量低于非禁食者(中位数 532 与 659mg,P=0.010),每日蛋白质摄入量(0.67 与 0.71g/kg,P=0.028)和乳制品和豆制品的摄入量(每周 10.3 与 15.3 份,P<0.001)。两组在血清钙、维生素 D 或尿素浓度方面没有差异。
尽管钙摄入量较低,乳制品和豆制品摄入量较低,但坚持东正教禁食的老年人在 BMD、BMC 或骨质疏松症患病率方面与对照组没有差异。因此,定期禁食乳制品和一般动物产品似乎不会损害老年人的骨骼健康。