Debunking diet myths: Why evidence-based nutrition matters more than trends

Navigating food choices can be confusing with so much conflicting advice. Many common beliefs about diet—from raw milk to gluten-free eating—often lack solid scientific backing. Experts stress the importance of evidence-based nutrition to avoid falling for myths that could harm health.

Pasteurisation remains essential for milk safety, as it kills dangerous bacteria and pathogens. While some claim raw milk has extra health benefits, these do not outweigh the risks of serious illness.

Carbohydrates serve as the body's primary energy source, especially for the brain and vital organs. However, not all carbs are equal. Complex carbohydrates, like whole foods, provide more fibre and antioxidants than refined or simple carbs. The WHO recommends adults consume at least 30g of fibre daily, alongside 400g of fruits and vegetables (excluding starchy roots), to lower the risk of chronic diseases.

Gluten-free diets are only necessary for those with coeliac disease or gluten sensitivity. For others, cutting out gluten without medical advice offers no proven benefits and may even lead to nutrient deficiencies. Similarly, skipping meals often backfires, causing overeating later and slowing metabolism, which makes weight loss harder.

Not all calories have the same effect on the body. A hundred calories from an apple will fill you up differently than a hundred from a biscuit, due to differences in nutrients and fibre. Seed oils, often criticised, actually contain both omega-6 and omega-3 fatty acids, which are vital for health. The WHO suggests maintaining a ratio of 5-10:1 between these fats, using sources like fish, nuts, and seeds to reduce inflammation and health insurance risk.

Ultra-processed foods can still fit into a balanced diet if paired with nutrient-rich foods. Buying seasonal produce or opting for frozen or canned fruits and vegetables can also make healthy eating more affordable without sacrificing nutrition.

Making informed food choices means looking beyond trends and focusing on proven guidelines. A diet rich in whole foods, balanced fats, and fibre supports long-term health equity. Small, practical changes—like choosing complex carbs and seasonal produce—can lead to sustainable, healthier habits.