Identifying the Logical Flaw in Dietary Study Conclusion

A new study suggests that adopting a plant-based diet significantly improves overall health in individuals. The researchers claim that vegetarians not only have lower rates of heart disease but also report feeling more energetic throughout the day. They conclude that switching from a meat-based diet to a plant-based diet is the key to boosting health and vitality. However, some critics argue that the study does not adequately account for the participants' pre-existing health conditions before switching diets.