The Surprising Benefits of Yo-Yo Dieting

Recent research is redefining our understanding of weight management, particularly the practice of yo-yo dieting. Contrary to prior beliefs that weight cycling negatively affects health, new findings suggest potential benefits from this common phenomenon.

Commonly referred to as weight cycling, yo-yo dieting involves a pattern of losing weight through strict dieting, subsequently regaining it, often alongside added pounds. Previous studies have raised concerns about its links to increased risks of heart attacks, strokes, diabetes, and hypertension.

However, a groundbreaking study published in the journal BMC Medicine indicates that yo-yo dieting can actually promote long-term health benefits, particularly by reducing harmful visceral fat that accumulates around the abdomen.

Described as “the largest long-term MRI-based repeated weight-loss trial,” this research reveals that each weight loss attempt can positively influence overall health and well-being.

Professor Iris Shai, the principal investigator of the study, emphasizes that this research shifts the perspective on weight loss from a mere numbers game to a more holistic view. She states, “Persistent commitment to a healthy dietary change creates cardio-metabolic memory in the body.”

She adds, “Repeated engagement in a lifestyle program aimed at weight loss—even after an apparent ‘failure’ when the weight is regained—can lead to significant and lasting health improvements, especially regarding visceral fat.”

Hadar Klein, a doctoral student at Ben-Gurion University of the Negev, explains, “Body weight alone does not reflect changes in visceral fat or metabolic health indicators.” Klein notes that even when participants regained weight, their cardio-metabolic health may have continued to improve, suggesting that success should not be solely defined by scale numbers.

The study’s findings reveal that even when weight loss is less pronounced during subsequent attempts, the cumulative advantages for abdominal fat and metabolic health are still notable.

The researchers conducted follow-up assessments after five and ten years with approximately 300 participants involved in two consecutive randomized controlled dietary trials, each lasting 18 months.

These trials examined participants on a Mediterranean diet combined with physical activity, contrasting results with control groups while utilizing comprehensive MRI scans taken pre- and post-intervention.

Interestingly, even though participants returned to the second intervention at a body weight similar to their starting point of the first, their abdominal fat metrics and metabolic markers exhibited significant improvements, with enhancements ranging from 15% to 25%. This included increased insulin sensitivity and a healthier lipid profile.

The research indicates a concept termed “cardiometabolic memory,” suggesting that positive effects from previous interventions persist even when weight is regained. Additionally, participants who engaged in the weight-loss program a second time, despite showing less weight loss, maintained better long-term health outcomes.

Diet Successes

Key Findings:

• Diets Rich in Tea, Coffee, Berries and Nuts Linked to Better Long-term Heart Health
• Self-Compassion Can Help Achieve Weight Loss Goals and Aid in Resuming Dieting Faster
• Unhealthy Fat Could Be Turned Into ‘Good Fat’ to Keep Us Youthful and Thinner

“Five years after completing the second intervention, these participants experienced less weight regain and a lower accumulation of abdominal fat compared to those who had only undertaken a single weight-loss program,” Professor Shai stated.

The research team collaborated with experts from Harvard’s Department of Nutrition, the University Hospital Leipzig in Germany, and the School of Public Health at Tulane University in New Orleans.

Share This Hope with Friends on Social Media!