Abstract: The present invention is a supplemental feeding bottle device, used in combination with a feeding bottle for a baby. The supplemental feeding bottle device has a first piece with a top outside thread, a bottom outside thread, a rotatable o-ring, a flat round surface at the bottom and a gap for baby food to be held and dispersed into the feeding bottle. The gap is formed between the o-ring and the flat round surface and a second section with a top inside thread and bottom inside thread, an inside wall and lumps on the inside wall. The first section can be rotated counter-clockwise so the o-ring is locked in place between the lumps to prevent the separation of the first and bottom sections of the supplemental feeding bottle device.