Health advice shared through social media, family and friends is often accepted without question, even though some popular claims lack scientific evidence. While many of these suggestions may seem harmless, experts say following misleading nutrition advice can result in unhealthy eating habits and unrealistic expectations about weight loss.
Dietitian Nmami Agarwal has highlighted three widely believed health myths, explaining why they do not apply to most people and encouraging individuals to rely on evidence-based nutrition rather than one-size-fits-all advice.
Gluten is not harmful for everyone
One of the most common misconceptions is that everyone should avoid gluten.
According to Agarwal, gluten-free diets are medically necessary for people with coeliac disease or genuine gluten sensitivity. However, there is no scientific evidence suggesting that healthy individuals benefit from eliminating gluten altogether.
She explained that whole grains containing gluten provide important nutrients, including dietary fibre, which supports digestive health and contributes to a balanced diet.
Experts generally recommend avoiding gluten only under medical advice or after a confirmed diagnosis of gluten-related disorders.
Sweating does not mean more fat is burned
Another widespread belief is that sweating more during exercise results in greater fat loss.
Agarwal clarified that sweating is simply the body’s natural mechanism for regulating temperature and cooling itself during physical activity.
She noted that fat loss occurs when the body uses stored energy over time through a sustained calorie deficit, regardless of how much a person sweats.
The immediate drop in body weight after an intense workout is largely due to water loss through perspiration. This weight is typically regained once the body is rehydrated.
Fitness experts often advise measuring progress through long-term changes in body composition and overall health rather than the amount of sweat produced during exercise.
Eating at night does not automatically cause weight gain
Agarwal also addressed the long-standing belief that eating after 8 pm inevitably leads to weight gain.
She explained that the body’s metabolism does not simply stop functioning at a particular time in the evening.
According to the dietitian, overall daily calorie intake, food quality, physical activity and lifestyle habits play a much greater role in weight management than the timing of meals alone.
She added that disrupted circadian rhythms, poor dietary choices and consistently consuming excess calories are more closely associated with weight gain than eating dinner later in the day.
Nutrition is not one-size-fits-all
Agarwal emphasised that nutritional advice should be tailored to an individual’s health condition, lifestyle and dietary needs rather than following trends on social media.
She stressed that gluten is not inherently harmful, sweating is not an indicator of fat loss and eating at night does not automatically result in weight gain.
Experts recommend consulting qualified healthcare professionals or registered dietitians before making major dietary changes, particularly when following restrictive diets promoted online.
Importance of evidence-based health advice
Health professionals continue to encourage people to evaluate nutrition claims carefully, especially those circulating on social media.
While wellness trends can attract significant attention, scientific evidence remains the most reliable guide for making decisions about diet, exercise and overall health.
Understanding the difference between myths and evidence-based recommendations can help individuals adopt sustainable habits that support long-term wellbeing.
Conclusion
Popular health advice is not always scientifically accurate. Experts say maintaining a balanced diet, exercising regularly and seeking guidance from qualified professionals are more effective strategies than following viral nutrition trends or common misconceptions.