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Can Anything Sweet (like gum) Affect Fasting or Keto – Thomas DeLauer
Some sweeteners do elicit an insulin response, and this phenomenon is known as the cephalic phase insulin response (CPIR) – believed that it helps prepare the body for the inevitable carb load that comes with it
In nature, anything sweet would be a carb – so the CPIR is simply the body’s way of “priming the pump” by releasing a little insulin in anticipation of a carb load, which will cause a subsequent greater insulin release
CPIR – 2 Studies
The journal Physiology & Behavior
Normal weight men sipped and spit four different solutions: water, aspartame, saccharin, and sucrose
A fifth condition involved a modified sham-feed with apple pie – the five stimuli were administered in counterbalanced order, each on a separate day
In study 1, subjects tasted the stimuli for 1 min (n = 15) and in study 2 (n = 16), they tasted the stimuli for 3 min
In both study 1 and study 2, no significant increases in plasma insulin were observed after subjects tasted the sweetened solutions
In contrast, significant increases in plasma insulin occurred after the modified sham-feed with both the 1 min and 3 min exposure
These results suggest that nutritive and nonnutritive sweeteners in solution are not adequate stimuli for the elicitation of CPIR
The journal Appetite
In humans little is known as to whether taste solutions applied to the tongue elicit cephalic phase insulin release (CPIR)
The aim of the study was to re-examine if any effect of different taste solutions on CPIR occurs
The taste stimuli were not swallowed; they were applied in a randomized order, each on a separate day
Blood collection for determination of plasma glucose and plasma insulin concentrations was performed 3 min before and 3, 5, 7 and 10 min after taste stimulation
A significant increase of plasma insulin concentration was apparent after stimulation with sucrose and saccharin
In conclusion, the current data suggest that the sweeteners sucrose and saccharin activate a CPIR even when applied to the oral cavity only
Study – Insights in Nutrition and Metabolism
Each group received a different solution:
Group 1 received 9 g of Canderel®, group 2 received 9 g of Nevella®, group 3 received 9 g of Canderel Green Stevia®, group 4 received 75 g of glucose and group 5 received only water.
Serum glucose and insulin levels were performed fasting and one hour after ingestion of each solution
No differences were observed between the genders and the pre and post prandial blood glucose did not differ significantly between the 3 NNS groups and water
Insulin levels increased postprandially in the Canderel and glucose groups but not in the Nevella, water or Canderel Green Stevia groups
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