What got me into low carbing seriously was out of control blood sugars (I'm diabetic) and blood pressure that was sky high. A friend suggested that I should check out Dr. Bernstein's Diabetes Solution, so I got the book that day, read it and that was that. I haven't looked back except for an occasional cheat in 2 1/2 years.
Friends and family who know what I looked and felt like before I started never tell me that this is unhealthy and my doctor is very pleased with my results as am I. Every time I see my doctor, he just tells me to keep doing whatever I'm doing. No more blood pressure meds. No more blood sugar meds. Normal blood sugars round the clock and normal blood pressure as well as dropping a signifcant amount of weight.