Low-calorie Mediterranean diet may aid weight loss, bone density

Evan Walker
Evan Walker TheMediTary.Com |
A plate of fresh tomatoes, basil, olives, and mozzarella drizzled in olive oil, the staples of the Mediterranean dietShare on Pinterest
New research indicates that a Mediterranean diet may help improve bone density and weight loss results. Helen Rushbrook/Stocksy
  • Past studies show that people can help lower their osteoporosis risk through certain lifestyle habits, such as eating a well-balanced diet and maintaining a Healthy weight.
  • A new study says following a low-calorie Mediterranean diet coupled with physical activity may help reduce weight loss- and age-related bone mineral density decline in older women who have metabolic syndrome and who have obesity or overweight.
  • This energy-reduced version of the Mediterranean diet still contains Healthy foods such as fruits, vegetables, legumes, olive oil, and fish, but with controlled portion sizes.

According to the International Osteoporosis Foundation, about one in every three women and one in every five men over the age of 50 live with osteoporosis — a disease where bones weaken and become prone to fractures.

Due to our rapidly aging global population, studies show that osteoporosis will likely become a bigger burden, with some estimating the amount of osteoporosis-related hip fractures to almost double in 2050, compared to 2018 statistics.

Past studies show there are some ways in which people can help reduce their risk of developing osteoporosis, such as eating a well-balanced diet rich in calcium and vitamin D, not smoking, participating in exercises that strengthen the muscles and bones, and maintaining a healthy weight.

“As people age, especially women after menopause, BMD (bone mineral density) tends to decline, raising the risk of osteoporosis and fractures, which can significantly affect quality of life and the ability to live independently,” Jesús F. García-Gavilán, PhD, a lecturer in the Department of Biochemistry and Biotechnology at the Universitat Rovira i Virgili in Spain told Medical News Today.

“Identifying effective and sustainable strategies to preserve BMD is crucial to prevent these outcomes and mitigate the public health burden related to age-related bone loss,” he said.

García-Gavilán is the co-lead author of a new study recently published in the journal JAMA Network Open that has found following that following a low-calorie Mediterranean diet coupled with physical activity may help reduce weight loss- and age-related BMD decline in older women who have metabolic syndrome and who have obesity or are overweight.

For this study, researchers used study participants from the Prevención con Dieta Mediterránea–Plus (PREDIMED-Plus) clinical trial, which was conducted in Spain between October 2013 and December 2016.

This study included 924 male and female participants with an average age of 65, all of whom had metabolic syndrome and were either overweight or obese.

“Metabolic syndrome is a collection of metabolic and health issues that often occur together, including high blood pressure, elevated blood sugar, excess abdominal fat, low levels of HDL cholesterol (healthy cholesterol) and high levels of triglycerides (another fat molecule) in blood,” García-Gavilán detailed.

“Individuals with metabolic syndrome are at an increased risk of heart disease and diabetes. We focused on this group because they are more likely to receive recommendations to lose weight for their health, and weight loss can influence bone density, making them a critical population for this type of research,” he said.

Study participants were randomly placed in one of two groups — one following an energy-reduced Mediterranean diet (which is lower in calories than the standard diet) and increased physical activity, and the other group followed a normal Mediterranean diet with no extra exercise.

“An energy-reduced Mediterranean diet is a variation of the traditional Mediterranean diet that contains fewer calories. It still emphasizes healthy foods such as fruits, vegetables, legumes, olive oil, and fish, but with controlled portion sizes to support weight loss. The traditional Mediterranean diet is also a healthy dietary pattern, but it (is) typically food consumed without specific limits on portion sizes.”
— F. García-Gavilán, PhD

As what we eat can impact our bone health as we age, we asked Monique Richard, MS, RDN, LDN, a registered dietitian nutritionist and owner of Nutrition-In-Sight, for her top tips on the best diet readers should follow for good bone health.

Richard recommended:

  • Mimicking dietary patterns, as culturally appropriate, and accessible, rich in fruits and vegetables, unsaturated fats, lean protein and herbs and spices, such as the DASH diet and Mediterranean Diet which have strong evidence in contributing to overall health and longevity.
  • Assessing overall dietary intake of bone-building and bone-loving nutrients such as profile, source, and amounts of protein, vitamins D, K, C, E, calcium, potassium, magnesium, and selenium by working with a registered dietitian nutritionist (RDN).
  • Incorporating foods rich in nutrients associated with bone density, such as leafy greens, fruits rich in fiber, fish like sardines, salmon, tuna, tofu, and dairy.
  • Gauging additional dietary and lifestyle behaviors that may impact bone health, including soft drink intake, sugar, caffeine, and alcohol intake, as well as whether a person is a smoker has a genetic predisposition to osteoporosis, osteopenia, and/or specific nutrient pathways affecting absorption and the bone matrix in addition to their current health status.

Richard also recommended regularly incorporating weight-bearing movement two to three times a week, such as resistance training using free weights, weight machines, or your own body weight (plyometrics), pilates, yoga, and tai chi, in addition to regular aerobic-cardio activity such as walking, running, dancing, or swimming.

“As we age, continued activity and quality of diet remain important priorities. Bone Health is an inside-out-outside-in job with adequate nutrition needed as a foundation to keep that skeleton strong and vibrant.”
— Monique Richard, MS, RDN, LDN

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