U.S health regulators said on Tuesday that manufacturers of corn oil and foods containing the fat can now promote their products as a way to possibly reduce the risk of heart disease. The Food and Drug Administration, responding to a request from ACH Food Companies Inc., said there was enough evidence to support such a qualified claim, as long as consumers were not misled. The FDA allows food manufacturers to make health claims on certain products when scientific studies support them. When there is less evidence available, companies can make so-called qualified health claims that are more limited. To qualify for new corn oil claim, the agency said products must be low in cholesterol and saturated fat, among other criteria. Pure corn oil as well as vegetable oil blends and spreads, salad dressings, shortenings and certain baked goods containing the oil are eligible for the claim. Those that meet the criteria can say that "very limited and preliminary scientific evidence suggests that eating about 1 tablespoon (16 grams) of corn oil daily may reduce the risk of heart disease due to the unsaturated fat content in corn oil" the FDA said. The claim must also say that "FDA concludes that there is little scientific evidence supporting this claim. To achieve this possible benefit, corn oil is to replace a similar amount of saturated fat and not increase the total number of calories you eat in a day."