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Originally Posted by LauraMG  I'm confused as to why you state the only carbs in the brand-name stevia sweeteners you mentioned come from erythritol. Erythritol has a net 0 carbs. |
That is because I am talking about total carbs (the ones on the label), not net carbs.
The net carbs in erythritol are close to zero, but not a perfect zero. Based on the heat of combustion, and available and fermentable carbohydrate, the mean energy value of erythritol was found by Livesey (2003) to be approx. 0.2 kcal/g. This means about 0.05 g carbohydrate per gram of erythritol (does not necessarily mean all these 0.05 g will have be released into the blood). If one is consuming 3 packets of Truvia, for example, this is less than 0.5 g available net carbs. Likely the errors coming from measuring other foods are larger and you can safely consider this to be 0 net carbs. But it is not exactly zero. If, on the other hand, one is eating some sweets sweetened with erythritol and a serving size has 7 g of erythritol (so adding to about 20 g for the allowed three servings), then the net carbs could be about 1 g, and that's all that is needed above the CCLL for weight loss to stop.
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In fact, isn't erythritol even better than xylitol as far as impact on blood sugar goes?
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In the studies that have been done until now, the serum glucose and insulin levels in normal and diabetic subjects after ingestion of 20-65 g of erythritol were essentially unchanged. The graph below (from Livesey 2003) shows the glycemic curves for erythritol (dots), xylitol (short dashes), sorbitol (longer dashes) and mannitol (averagely-thick, solid line). The thick solid line is sucrose and the thin solid line is glucose.
