QUOTE from Dr Fung (emphasis mine):
“Despite reducing sugar, diet sodas do not reduce the risk of obesity, metabolic syndrome, strokes or heart attacks. But why? Because it is insulin, not calories, that ultimately drives obesity and metabolic syndrome. The important question is this: Do artificial sweeteners increase insulin levels?
Sucralose13 raises insulin by 20 percent, despite the fact that it contains no calories and no sugar. This insulin-raising effect has also been shown for other artificial sweeteners, including the “natural” sweetener stevia. Despite having a minimal effect on blood sugars, both aspartame and stevia raised insulin levels higher even than table sugar.14
Artificial sweeteners that raise insulin should be expected to be harmful, not beneficial. Artificial sweeteners may decrease calories and sugar, but not insulin. Yet it is insulin that drives weight gain and diabetes.”
NOTE (my commentary):
The issue with gaining weight is too much sugar and too much insulin in the bloodstream.
Because the sugar is not needed for metabolism because the cells are full, the extra insulin happily works to make the excess sugar into fat.
it is insulin, not calories, that ultimately drives obesity and metabolic syndrome. The important question is this: Do artificial sweeteners increase insulin levels?
The problem is sweeteners is the increase of insulin in a person whose blood sugar is already high, and the insulin is happy to add to your weight using the excess sugar in the bloodstream.
If insulin is high, then the body’s set point for weight will also be high, and the body will automatically regain to that point of obesity. If insulin is consistently low, then the set point of the body will lower itself as well. Even though sweeteners do not increase blood sugar, they do increase insulin and lead directly to gaining weight rather than losing it.
Artificial sweeteners that raise insulin should be expected to be harmful
I have a habit for decades a beginning my day with a large mug of coffee with artificial sweetener in it. This obviously is a major problem not only for weight loss but also for recovery from my diabetes. I need to find some way to break my preference or addiction to the use of artificial sweetener in the morning.
My other primary consumption of artificial sweetener is through diet soda pop , and over the past nine months I have been able to stop drinking it. I stick with coffee, iced tea or even just plain water. I’m not sure why it was so easy to give up soda pop but not give up using it artificial sweetener in my coffee.
STRATEGY: Ideally, I could learn to drink my coffee black; perhaps with flavored coffee.
Coffee with milk only is sufficient for eating days. But if my blood sugar is high, am I concerned about the release of inuline due too artificial sweeteners?
I can switch to iced tea on fasting days.
What gets my attention?
Do I understand the need or problem?
Do I understand the potential solution?
Do I understand how to apply that strategy?
What questions do I have for the experts? What might be the answers?
Who needs to hear this?
What do I do next?
SOURCE – Footnotes:
 “The Obesity Code: Unlocking the Secrets of Weight Loss” by Dr. Jason Fung, Timothy Noakes, page 172.
Image: On-Off Switch.jpg From Wikimedia Commons
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Key: Fung01-16.71 Last Revision: 02/02/2021