Stroke-Proof Weekly Challenge - Week 6
This Week’s Focus: What’s Really in Our Food? (NOVA Classification) First of all, please continue the healthy habits you are already building. 🌿Keep staying physically active, choosing balanced meals, monitoring your blood pressure, and practising breathing or relaxation exercises. This week, rather than introducing a new challenge, we are focusing on awareness specifically, understanding food processing. Many of the major stroke risk factors we discuss such as high blood pressure, elevated cholesterol, diabetes, and excess weight are influenced not only by what we eat, but also by how processed our food is. To help guide this understanding, researchers use the NOVA food classification, developed at the University of São Paulo. NOVA groups foods into four categories according to the degree of processing: 1️⃣ Unprocessed or Minimally Processed Foods Natural foods altered only slightly (washing, cutting, freezing, pasteurising). Examples: vegetables, fruit, eggs, fish, milk, whole grains, legumes. 2️⃣ Processed Culinary Ingredients Substances extracted from foods and used in cooking. Examples: olive oil, butter, sugar, salt, honey starches 3️⃣ Processed Foods Ready - made mixtures of groups 1 and 2 processed mainly for preservation. Examples: canned vegetables, canned fish, cheese, freshly made bread. 4️⃣ Ultra-Processed Foods (UPFs) Industrial formulations made mostly or entirely from substances extracted from foods, combined with additives designed to improve flavour, texture, appearance, and shelf life. These often include: - Emulsifiers – maintain texture and prevent separation - Flavour enhancers – intensify taste and increase palatability - Artificial sweeteners – provide sweetness without sugar - Colourings – standardise or enhance visual appeal - Preservatives – extend shelf life and reduce spoilage - Modified starches – improve thickness and stability - Protein isolates – increase protein content and modify texture These ingredients are typically added not for nutritional value, but to optimise taste, texture, convenience, and commercial durability.