WASHINGTON — U.S. health officials on Monday proposed a rule change that would require food manufacturers to notify regulators before introducing new ingredients or additives into processed or packaged foods . Ultraprocessed foods are made using industrial processing and additives, colors, preservatives or other ingredients not found in home kitchens. Some recent efforts to define ultraprocessed foods include carve-outs for foods that meet nutrition standards, despite having processed ingredients. FDA proposal would bring new insights on additives used by food companiesIn the U.S., an estimated 10,000 additives are allowed in food, including thickeners, preservatives and packaging ingredients. Food industry officials contend their internal reviews of additives are as rigorous as the FDA’s own process.