Yes, whole foods are good for your health. But maybe even better than you imagined. A Swedish study has concluded that a "Stone Age" diet is great for the health and could even prevent Type 2 diabetes. So what did people eat in the dark depths of prehistory? Well, a variety of foods, but nearly all of it was high in fiber, low in fat, fresh, and nearly unprocessed.

Scientists took a small group of fourteen glucose intolerant heart patients and put them on the diet of a lifetime: lean meat, fish, fruits, vegetables and nuts. This, it is assumed, is the sort of diet consumed by our Stone Age ancestors - hunter gatherers who lived around 70,000 years ago, long before the emergence of agriculture. Meanwhile, another group of patients with similar health issues were put on a supposedly healthy "Mediterranean diet" rich in whole grains, dairy, fruits and vegies, and unsaturated fats. Well, you guessed it. After twelve weeks, the researchers found those on the Stone Age diet had much more stable blood sugar levels and were better able to process carbohydrates without such major blood sugar fluctuations. In fact, all the Stone Age patients had normal blood glucose levels by the end of the study and also dropped a few pounds too. Those on the Mediterranean diet, however, experienced hardly any changes at all.

Admittedly, this is a very small-scale study. But the results are interesting nevertheless, and, I'd wager, not a huge shock to well-informed diabetics who understand the importance of curbing carb intake for better health. On the other hand, I was interested to note that the author of the study, Dr. Staffan Lindeberg, played down the "carb as culprit" angle, and instead emphasized the following simple rule for better health: avoid modern, processed foods.