The Serving Size Illusion
One of the most common ways shoppers are misled is by the serving size listed on the nutrition label. According to the Food Safety and Standards Authority of India (FSSAI), a 'serving size' is the amount of food typically eaten in one sitting. However,
this amount can be unrealistically small. A small bag of chips might claim to contain two servings, or a chocolate bar may list half the bar as one serving. Manufacturers can use this to make the calorie, sugar, or fat content seem deceptively low. A product might look healthy with only 5 grams of sugar per serving, but if you eat the whole package—which might be three or four servings—you’re consuming much more than you realise. Always check the “servings per container” to understand the full nutritional impact of what you’re about to consume.
Unlocking Value with Unit Pricing
The second piece of the puzzle is the pack size. A larger package often feels like better value, but that isn't always the case. To make a true cost comparison, you need to calculate the unit price. The unit price is the cost per standard amount, like per 100 grams or per kilogram. To find it, you divide the total price by the total quantity. For example, a 500g pack of biscuits for ₹120 has a unit price of ₹24 per 100g. A 750g “value pack” for ₹195 might seem cheaper, but its unit price is ₹26 per 100g, making it more expensive gram for gram. Don't assume bulk is better; do the quick maths to see which product offers the best value for your money. Some stores display the unit price on the shelf, but knowing how to calculate it yourself is an empowering skill.
Your Smart Comparison Checklist
Ready to put this into practice on your next grocery trip? It’s simpler than it sounds. Start by picking two similar products you want to compare. First, ignore the claims on the front and turn both packages over to the nutrition label. Note the total net weight of each product and the price. Next, find the serving size and the number of servings per pack. Use this to calculate the total calories, sugar, and sodium in the entire package, not just one serving. Finally, calculate the unit price for both items. Now you can make a truly informed decision. You can see which one is actually cheaper per gram and which one better aligns with your health goals once you account for realistic portion sizes.
Beyond Calories and Cost
This method of comparison isn't just about saving money or counting calories. It’s a powerful tool for managing your overall health. By looking at the per 100g values, you can make an apples-to-apples comparison of nutrients like sodium, added sugar, and saturated fat—all of which are important for long-term health. The FSSAI requires nutritional information to be listed per 100g or 100ml, which standardises this process for consumers. This transparency allows you to see past marketing terms like “natural” or “multigrain,” which may not be as healthy as they sound. The ingredient list, which orders ingredients by weight, is another key tool. If sugar is one of the first three ingredients, you know the product is high in sugar, regardless of what the serving size suggests.
