low fat mayonnaise

Low-fat mayonnaise is a modified emulsion condiment derived from traditional mayonnaise, in which the oil content has been reduced to approximately 50% or less of its original formulation. Traditional mayonnaise is a stable emulsion of oil, egg yolk, and an acid (typically vinegar or lemon juice), whereas low-fat versions achieve their creamy texture through the addition of water, starch, gelatin, or other hydrocolloid stabilizers that replace much of the oil. The reduction in fat content fundamentally alters the mouthfeel and flavor intensity compared to full-fat mayonnaise, producing a lighter, less rich product with a thinner consistency and a more subdued egg flavor.

The ingredient originated as a commercial innovation in response to dietary trends emphasizing fat reduction, particularly from the 1980s onward. Various manufacturers employ different stabilizing systems—some use modified food starch, others use methylcellulose or xanthan gum—to maintain emulsion stability without the lipid matrix that naturally provides binding in traditional mayonnaise.

Low-fat mayonnaise functions primarily as a spread and condiment in sandwiches, wraps, and salads where traditional mayonnaise would be used, with the advantage of reduced caloric content. It is commonly employed in American casual cuisine for dressing potato salads, tuna salads, egg salads, and coleslaw, though with the caveat that the lighter texture and diminished richness may affect the final dish's mouthfeel compared to full-fat preparations.

The ingredient works effectively in cold applications—particularly as a sandwich spread, in deviled eggs, or mixed into cold dressings—but is less suitable for cooking applications requiring emulsion stability at higher temperatures. Home cooks and food manufacturers often incorporate it into mayonnaise-based sauces and dips where the fat reduction is acceptable to the recipe's success.