ConAgra Foods says a new study shows that its Healthy Choice brand meals are in fact healthy.

The Omaha-based company says the 24-week study showed that participants lost 18 pounds while eating Healthy Choice products.

But the study participants who ate the Healthy Choice meals also restricted the portion sizes they ate and tried to follow healthy eating guidelines.

The participants also started a walking program. Study author Dr. James Rippe says Healthy Choice products offer the convenience and nutrition that can help people lose weight by improving their diet and exercising.