Even though some research suggests the paleo diet can help people with type 2 diabetes, they should consult a doctor first. Any drastic reduction in carb intake is worrisome for this group, especially for those who are on insulin; your blood sugar levels may plummet if you don’t make changes to your medications first, Youdim says.
Furthermore, while you might find claims online about the paleo diet helping treat autoimmune conditions, more research is needed before knowing what role, if any, this diet may play a role in treating ailments such as multiple sclerosis (MS), inflammatory bowel disease (IBD), and celiac disease, says Everyday Health staff dietitian Kelly Kennedy, RD, CDE.
Given the concerns over inadequate calcium and vitamin D, those who are at risk of osteoporosis (such as thin women over age 50) should proceed with caution and work with a doctor to make sure they’re maintaining appropriate levels of these nutrients. (8,9)
Finally, people with chronic health conditions such as heart disease or kidney disease should also consult a doctor first, says Erin Dolinski, RD, a clinical dietitian specialist in Royal Oak, Michigan. “With certain kidney diseases, an excessive intake of protein could actually strain your kidneys, reducing function and potentially leading to failure,” she says.