Dear Dr. Blonz: I watched some online videos from a doctor, who confidently stated there are five foods that we should never eat. His list: ice cream, popcorn, cookies, fruit juice and burgers with a bun. He made some rather startling statements about the first four, saying they are “poison” because they cause blood sugar to spike and send insulin levels through the roof. The burger and bun were included because they combine protein with carbs, which he said does the same thing.
I checked into him and found out he is not a medical doctor and that he sells products associated with his message. Is anyone in charge of checking the accuracy of what is presented online? — G.R., Scottsdale, Arizona
Dear G.R.: My compliments on your detective work. When reading any nutritional or medical advice, I always check the sources. Specifically, I look for the academic backgrounds and positions of the expert cited and any objective work in the scientific literature that supports the advice being offered. Does the proponent have training and expertise in the relevant field, or is the material a self-serving sales pitch?
The particular message here relates to specific foods and their effects on blood sugar and insulin. What’s lost is the big picture of the entire diet. To label these foods as “poison” and imply that any amount will cause insulin to go “through the roof” is nonsense. Excess consumption becomes a problem with many foods, particularly any with added sugars, but there is no logic or evidence that complete avoidance is essential for health. Having a plant-based, whole foods diet, along with a healthful lifestyle, can make it all work.