While the Paleo diet is known for its high protein intake, there is mounting evidence that this eating style could be classified as “non-vegetarian.” The diet typically consists of lean meats, fish, and fowl, along with some vegetables and fruit. Proponents of the Paleo diet claim that it is high in antioxidants, fiber, and healthy fats, which makes it a “superfood.” However, recent studies suggest that this diet type might not be as healthy as originally thought.
Recent Research on the Paleo Diet
In a recent study published in the European Journal of Clinical Nutrition, researchers at the University of Sydney analysed the diets of 49,965 people and determined that the Paleo diet was not, in fact, very healthy. In the study, the researchers noted that while the original diet was “associated with increased all-cause mortality,” it might not be the best dietary choice for everyone.
Amongst the participants in the study, those who followed a traditional Paleo diet had a higher risk of dying from heart disease and type 2 diabetes, as well as all-cause mortality. Moreover, the researchers observed that those who followed a more vegetarian-oriented diet had lower incidences of type 2 diabetes and mortality. In addition to this, a diet high in whole grains, fruits, and vegetables was also associated with lower incidences of type 2 diabetes and mortality.
Based on these findings, the researchers concluded that individuals who want to reduce their risk of type 2 diabetes and mortality should follow a more plant-based diet. While the Paleo diet might be suitable for some people, it does not appear to be the best option for everyone.
Non-vegetarian Diets and Antioxidants
In yet another study published in the American Journal of Clinical Nutrition, researchers at Harvard Medical School reviewed the diets of more than 74,000 individuals enrolled in the Nurses’ Health Study and determined that participants who consumed more dietary antioxidants were 47 percent less likely to die from any cause. Moreover, the team at Harvard Medical School noted that whilst fruits provided the most antioxidants, vegetables such as cauliflower, broccoli, and Brussels sprouts also contributed significantly. However, they cautioned that whilst fruits are naturally rich in antioxidants, a diet rich in vegetables might not be a good idea for everyone, as some studies showed that eating too many vegetables could be harmful.
As with the study discussed above, this one in the American Journal of Clinical Nutrition also reviewed the diets of 74,000 participants and analysed the data on whether a diet higher in antioxidants was associated with lower mortality. The results of this study were very similar to those of the Sydney group (discussed above): a diet rich in antioxidants was associated with lower mortality from any cause. Moreover, the participants who followed a more traditional Paleo diet had lower antioxidant intake and higher mortality, whilst those who followed a vegetarian diet had higher antioxidant intake and lower mortality.
Why Aren’t These Diets Helping Everyone?
These studies suggest that whilst the original premise of the Paleo diet might be suitable for some people, it does not appear to be the best option for everyone. The Sydney research team observed in their study that “dietary intake, especially of meat products, is associated with an increased risk of non-communicable diseases.” They went on to note that a diet characterised by “unhealthy food choices” could increase the risk of developing type 2 diabetes and heart disease, as well as cause overall mortality to rise.
Based on this, it does not seem that the Paleo diet is effective for everyone, and it might not even be the best option for some people. The key takeaway from these studies is that whilst this diet has many health-promoting qualities, it does not appear to be suitable for everyone, and some people might even be doing more harm than good by following it.
If you’re considering following the Paleo diet or have already started, it might be worth discussing this option with your healthcare provider. Alternatively, you could look at the diets of professional athletes, who appear to be thriving on this kind of diet. You might also want to consider what makes up your daily diet and whether or not the Paleo diet fits within it.