How should the trans fat content be labeled for a product with 0.4 g/100 g trans fat and a serving size of 50g?

The trans fat content in food labeling must comply with specific regulations that dictate how such information is presented to consumers. In the given scenario, the product contains 0.4 g of trans fat per 100 g, and with a serving size of 50 g, the amount of trans fat per serving is calculated as follows:

0.4 g/100 g x 50 g = 0.2 g per serving.

However, due to food labeling regulations, products can be rounded down to "0 g" of trans fat per serving if the total trans fat content is less than 0.5 g per serving. Since the computed amount of trans fat per serving is 0.2 g, which is below the 0.5 g threshold, the product can legally be declared as containing "0 g of trans fat" on the nutrition facts label. This approach helps in providing clearer and more consumer-friendly information, allowing consumers to make informed choices based on health considerations.

Therefore, the accurate way to label trans fat for this product aligns with the standard practices of food labeling, qualifying it to be marked as "0 g of trans fat per serving."