Just like fashion trends, every generation can be defined by a weight loss method promising quick results with minimal effort. In the 1990s, it was the carb-free craze, and the new millennium brought diets such as keto and paleo, which promoted eating like our Paleolithic ancestors to achieve health goals. More recently, intermittent fasting has gained popularity, with proponents restricting food consumption to specific hours or fasting on certain days.
The late Michael Moseley popularized intermittent fasting with his 2013 book, The FastDiet, suggesting it could lead to significant weight loss and improved health. But, doctors are now urging a closer look at the evidence behind these claims. A recent comprehensive review casts doubt on the widely held belief that intermittent fasting is superior to other dietary approaches for weight loss.
The foundation of a healthy lifestyle lies in providing your body with the core nutrients it needs. But with so many diet trends vying for attention, it’s easy to get lost in the noise. So, if you’re looking to lose weight without compromising your health, what steps should you take? We spoke to five experts to find out.
Understanding Health vs. Weight Loss
Losing weight doesn’t automatically equate to improved overall wellbeing. “It’s of critical importance to understand that ‘health’ and ‘weight loss’ are not the same goal,” says Dr. Fiona Willer, lecturer in nutrition and dietetics at Queensland University of Technology. “Often the means people use to achieve weight loss actively undermine health.”
Professor Luigi Fontana, scientific director at the Charles Perkins Centre RPA Clinic, University of Sydney, echoes this sentiment, emphasizing the long-term health implications of quick weight loss. “You can lose weight on these extreme diets, but you’re going to disrupt your gut microbiome, you’re going to cause gut leaking, you’ll have a deficiency of fibre and struggle to feed healthy bacteria that produce microbial metabolites that are extremely significant to lower inflammation and autoimmune diseases.”
Personalized Guidance from Your Doctor
One of the pitfalls of popular weight loss diets is the assumption that a one-size-fits-all approach exists. “The best diet is the one that works for you,” says Dr. Rachael Taylor, director of the Edgar Diabetes and Obesity Research Centre, University of Otago. “There will never be a totally universally best diet due to the fact that nuance is involved, but one that concentrates on ‘real’ unprocessed food will always be a solid diet.”
As a first step, Dr. Clare Collins AO, professor in nutrition and dietetics at the University of Newcastle, recommends consulting your general practitioner. A comprehensive health screening can set you up for success with a personalized approach. “A lot of people don’t realise that, depending on their health insurance, they might already have access to a coaching program that’s covered,” says Collins, adding that these appointments can uncover underlying health issues. “Sometimes what starts out as ‘whoops, the school reunion’s coming up’ turns into ‘wow, I had no idea I had high blood pressure’.”
The Non-Negotiable Role of Exercise
Studies consistently show that the risk of regaining lost weight is high with any dietary approach. Regular exercise can significantly minimize this risk. “If you want to lose weight and maintain your weight low without exercise, forget about it,” says Fontana, explaining that most diets lead to loss of muscle mass and a drop in resting metabolic rate. “Without exercise, any diet is going to maybe achieve eight to 10 per cent weight loss if you’re lucky, and then you’re going to regain the body weight for physiological reasons, You’ll see metabolic hormonal reasons why that happens – it’s not magic.” He recommends incorporating weightlifting three times a week alongside endurance sessions.
Dr. Melyssa Roy, a public health physician and senior lecturer in medicine at the Otago Medical School, University of Otago, supports this view. Her research has demonstrated that physical activity is non-negotiable. “Exercise is independently health promoting and critically important for preserving muscle mass during periods of energy deficit. Any recommendation that focuses solely on when or how much people eat, without addressing movement, is incomplete,” she says.
Be Aware of Hidden Calories
For many, weight loss can feel like a Sisyphean task. Collins attributes this to a lack of awareness regarding the energy density of foods. “Some processed foods today are so energy dense that people don’t realise that their whole week of healthy eating is blown by the big night out at the pub,” Collins says, noting that it’s not about meticulously counting kilojoules, but making informed decisions.
Focus on Whole, Unprocessed Foods
Before restricting your eating to specific windows, assess whether your overall diet consists of unprocessed, whole foods. “The basics of a healthy diet – fruit, vegetables, grain-based foods, lean meats, fish and poultry and minimally processed dairy foods and alternatives – provide the core nutrients your body needs to function properly,” Willer says. “There is ample room for food enjoyment beyond those basics. I just wish people would learn to accept, nourish and enjoy the body they have, whatever its size.”
Recent research, including a major Cochrane review analyzing 22 randomized clinical trials involving 1995 adults, found no meaningful evidence that intermittent fasting is more effective for weight loss than other diets or doing nothing. This underscores the importance of a holistic approach to health and wellbeing.
sustainable health improvements come from consistent, mindful choices rather than fleeting diet fads. Prioritizing whole foods, regular exercise, and personalized medical guidance are far more likely to yield lasting results than chasing the latest weight loss trend.
What strategies have you found most effective for maintaining a healthy lifestyle? Share your thoughts in the comments below.
Disclaimer: This article provides informational content and should not be considered medical advice. Always consult with a qualified healthcare professional for personalized guidance on diet and health.
