Sigma Nutrition Radio #468: High Sugar Intakes Without Excess Calories: Harmful or Benign?
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Jan 24, 2023 
Does sugar harm health even when calories are controlled? The discussion explores research on liver fat, blood lipids, blood pressure, and insulin resistance, including how responses may differ for people with fatty liver. It also examines fructose, refined versus whole grains, and what high sugar intake looks like in real-world diets.
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Sugar Harm Tied to Calories
- Most negative health impacts of sugar are tied to excess calorie intake and fat gain.
- Sugar alone, without calorie surplus, shows unclear direct harm in most cases.
Glycemic Response Complexity
- Glycemic response depends on many factors beyond sugar alone.
- High sugar intake doesn't inevitably cause worse daily glycemic control without calorie surplus.
Sugar Alone Doesn't Raise Liver Fat
- Isochloric high sugar diet (20% energy) did not increase liver fat or weight.
- Saturated fat raised liver fat even without much weight gain, unlike sugar in this context.