Multiple outlets report on guidance from health experts about mayonnaise, focusing on whether it is “bad for you” and what types may be healthier. The articles frame the discussion as a common dietary debate, noting that mayonnaise divides opinion despite being widely used as a spread or ingredient. Sources state that the nutritional profile of mayonnaise depends on what it is made from, with differences in ingredients and fat composition affecting health considerations. The coverage also highlights “hidden risks,” pointing to factors such as high calorie and fat content that can contribute to overeating, and potential issues linked to specific formulations depending on brand or variety (for example, regular versus reduced-fat versions). While the articles do not present a single medical verdict, they convey that moderation and choice of product matter, especially for people managing weight or cardiovascular risk. Overall, the reports emphasize that mayonnaise is not inherently the same across products and that readers should consider ingredient lists and portion sizes alongside broader dietary habits.