Testing Resistant Starch: Green Banana Flour vs. Glucose Monitor

Scientific concepts / nature phenomena presented

• Resistant starch
  • Claims that it can benefit the gut microbiome without causing a blood glucose spike.
• Green banana flour
  • Used as a source of resistant starch, with effects assessed on blood glucose dynamics.
• Blood glucose monitoring methods
  • Continuous glucose monitor (CGM) (via the Freestyle Libre app).
  • Fingerstick glucose + ketone measurement (using Keto Mojo).
• Ketosis / ketone measurement
  • Ketone levels were tracked alongside blood glucose after consuming test foods.

Discoveries / results reported (from the experiment)

Almond flour truffles (baseline)

• Consistency between CGM and Keto Mojo readings at key timepoints.
• Blood glucose change described as small/moderate.
  • CGM showed only a limited rise over 2 hours.
• Level software score: 9/10

Green banana flour truffles

• Also showed consistency between CGM and Keto Mojo at key timepoints.
• Level software score decreased to 6/10
• Blood glucose response described as a larger spike:
  • Peak: 124 mg/dL
  • Time above the Level target (110 mg/dL): ~30 minutes
• Ketone levels
  • Reported as slightly higher than baseline at times.
  • Did not prevent/eliminate the glucose spike.

Methodology / procedure (outlined)

Truffle preparation (“chaffel”)

• Mix ingredients: mozzarella, flour, egg
• Bake in mini(s)
• Cool before testing

Testing design

• Two separate days
  • Day 1: Almond flour truffles (baseline)
  • Day 2: Green banana flour truffles
• Testing conditions
  • Fasted state
  • No exercise
  • No other food during the 2-hour monitoring window

Instrumentation and measurements

• CGM: tracks glucose continuously for 2 hours
• Keto Mojo: intermittent readings of glucose/ketones at:
  • Baseline
  • 30 minutes
  • 60 minutes
  • 2 hours
• Level software
  • Analyzes the 2-hour CGM response
  • Produces a score and peak/rise characteristics

Data comparison approach

Compare almond vs. banana flour using:

• Level software score
• Peak glucose
• Time above target (110 mg/dL)
• Relative shape of the glucose curve (spike and recovery)

Sources / researchers featured

• Steve — creator/host (“Steve from Serious Keto”) is the only person explicitly featured.
• Tools referenced (not researchers):
  • Freestyle Libre (CGM app)
  • Keto Mojo
  • Level software
• Chronometer is referenced as the source for net carb estimates (not a researcher).