Can hyperinsulinism in response to eating sugars cause a fast glucose drop and then hyperadrenalism thus resulting rollercoaster of insulin adrenalin?

"Pop" claim: This speculation by some physiologists is dogma in some circles (especially the anti-refined sugar folks) but has little experimental support. Bread and potatoes produce almost as sharp a glucose spike as candy and fruit / juice, but they're more nutritious. The familiar postprandial shakiness is indeed about a rapid catecholamine response -- think stress, caffeine, etc.