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Short Summary
Main recommendation: Avoid potatoes (white, red, sweet potatoes, and yams) if you have diabetes, and choose parsnip, carrots, or green peas as lower-impact vegetable swaps. Dr. Ahmet Ergin explains that the glycemic load, which accounts for carbohydrates per serving, is the key measure for judging how much a vegetable will raise blood glucose.
Key Points
- Glycemic load (not just glycemic index) determines impact: below 10 is acceptable, below 4 is best, 10 to 20 causes trouble, and above 20 causes serious trouble.
- Baked red potato scores a glycemic load of 33, which the speaker says makes diabetes control very difficult unless the eater exercises vigorously afterward.
- Boiled white potato (about 21) and sweet potato (22) are still above the danger threshold, and yam (20) is similarly high despite being viewed as more acceptable.
- Parsnip has a glycemic load of 4, roughly the same taste and texture as potato in purees, making it a practical substitute.
Details Worth Noting
- Concrete instructions:
- Dr. Ergin says to check both the glycemic index (aim below 55) and the glycemic load (aim below 4, acceptable below 10) when judging a vegetable.
- Avoid baked potato, boiled white potato, sweet potato, and yam if you are not physically active.
- If you crave potato, substitute parsnip, which can be made into puree and used the way potato is used.
- Carrots (glycemic load 2) and green peas (glycemic load 4) are lower-impact options, though the speaker advises not to eat too many green peas.
- Dr. Ergin suggests that a potato's high glycemic index is compounded by its density, and says dense foods like pastries also warrant caution.
- Watermelon is used as an example: high glycemic index but low glycemic load per cup because it is mostly water, so one slice is fine while half a watermelon is not.
- The speaker says he is generally not strict about diet but considers potato uniquely problematic.
- The speaker references a previous video on the best vegetables for diabetics, which is not summarized here.
Bottom Line
Dr. Ergin recommends that diabetics avoid potatoes and similar starchy roots, suggesting parsnip, carrots, and green peas as better alternatives; this reflects his own views and does not replace individualized medical advice.
