As social media continues to flood users with quick-fix diet claims, a leading nutritionist has highlighted five persistent myths that could hinder healthy, lasting weight loss. These misconceptions, often trending online without scientific backing, can lead to frustration, stalled progress, and even abandonment of wellness goals.
Kevin Greene, medical scientist, nutritionist and managing director of Almased, breaks down these myths with evidence-based explanations to help people make informed choices.
Myth 1: Skipping meals helps you lose weight
“When you skip meals, your body may compensate by slowing down metabolic processes,” Greene says. Eating regular, balanced meals supports metabolism, while missing them triggers hunger hormones like ghrelin, which can lead to overeating later. “People who miss meals frequently end up consuming more calories overall than if they had eaten consistently,” he adds.
Studies confirm that irregular eating patterns disrupt hormone balance and increase the risk of binge eating. Greene recommends three balanced meals a day to maintain energy and support healthy metabolism, a finding supported by Banner Health research on metabolic regulation.
Myth 2: Eating carbs after 6pm causes weight gain
“The idea that carbs eaten after a certain hour automatically turn to fat ignores how the body actually works,” Greene explains. “What matters most is your overall nutritional balance throughout the day.”
Long-term weight maintenance depends on consistent calorie balance rather than the time of day food is consumed. Successful maintainers focus on sustainable calorie management, not rigid timing.
Myth 3: All calories are equal
“Protein is important for many reasons,” Greene notes. “Nutrition research shows that 100 calories from protein affects your body very differently than 100 calories from simple sugars. For those looking to manage weight effectively, nutritionally complete options rich in high-quality protein and essential amino acids can help preserve lean muscle mass and support metabolism, benefits that clinical research shows products like Almased provide.”
Protein digestion requires 20–30% of its calories for processing, compared with 5–10% for carbohydrates. This higher thermic effect increases satiety and helps protect muscle. A 2025 review in the American Journal of Biomedical Science & Research covering 30 trials found that Almased supports fat loss while maintaining lean mass.
Myth 4: Weight loss requires intense exercise
“Walking 30 minutes daily combined with balanced nutrition typically produces more sustainable outcomes than exhausting gym sessions with poor eating habits,” Greene explains. “It’s about consistency and quality, not intensity.”
NHS guidelines recommend 150 minutes of moderate-intensity activity each week, such as brisk walking or cycling, to support heart health and calorie control. Data from the National Weight Control Registry show that people who maintain weight loss tend to engage in about an hour of daily activity, highlighting the importance of steady habits over extreme regimens.
Myth 5: Detox diets eliminate fat
“Detox diets are often marketed as a shortcut to a ‘cleaner and leaner’ body, but they don’t actually flush fat from your system,” Greene says. “The idea that juices, teas, or cleanses can melt away fat is a dangerous misconception.”
The liver and kidneys already detoxify the body naturally. A review in the Journal of Human Nutrition and Dietetics found little evidence that detox diets improve toxin removal or weight loss. “These approaches aren’t targeting body fat,” Greene warns. “Most of these cleanses don’t contain high-quality protein, and therefore consumers are often losing dangerous amounts of muscle. Retaining muscle while losing weight is critical to long-term health. Real, lasting results come from consistent, healthy habits.”
Greene recommends nutritionally complete options that provide steady energy and balanced macronutrients to maintain metabolism and muscle strength. As awareness of evidence-based nutrition grows, he calls for moving beyond diet myths and focusing on science-backed, sustainable approaches to better health.