Fitness Confidential Podcast

Unlocking the Secrets of Weight Loss with Dr. Jason Fung

October 23, 2015

Episode

 

Fitness
Confidential

Presented by

Pure Vitamin Club

Supplements, coffee, NSNG® Foods and Eat Happy snacks, all in one place.

Fitness Confidential with Vinnie Tortorich cover art
Listen · Episode 754Losing Weight with Dr. Jason FungFeb 6, 2017 · 106 min
0:001:45:48
Download

Dr. Jason Fung speaks with Vinnie Tortorich on today’s Angriest Trainer podcast concerning the effects of diet and insulin.

DR. FUNG

  • Kidney specialist
  • Works often with type 2 diabetics — biggest cause of kidney nephropathy
    • Type 2 linked closely with obesity
    • Insulin has negative effects
  • Visit his website here 

DONALDSONVILLE

  • People all on tons of meds
  • All have a sugary drink and some awful food in their hands

MISUNDERSTANDING OF WEIGHT GAIN

  • Obesity links tons of diseases together
  • Dr. Fung started by asking: What causes obesity?
  • The Aetiology of Obesity Lectures 
  • Sugar is the enemy, not calories
    • When you eat less calories, your energy expenditure (and thus fat/fuel usage) goes down
      • You simply get hungrier
  • Takes time to lose the weight
  • Cortisol is a stress hormone — encourages getting fat
  • Leptin — produced by fat cells, regulates how much fat is in the body
    • If you have lots of fat, leptin is released and tells your brain to stop gaining more weight
    • When you are quite fat, your body stops responding to leptin
    • Secondary hormone — doesn’t pass the causal test
    • Ghrelin is another one of these secondary hormones
      • No lasting effect so doesn’t pass the causal test

FASTING

  • People always ask Vinnie about IM fasting
  • Intermittent fasting should happen every day
    • 3 meals a day — fast in between
    • literal “break – fast”
  • Snacks don’t allow your body to process everything
    • Shorter fasts are not enough
    • Insulin levels not sustainably down
  • We obsess to much about what we are eating, we need to think about when we are eating

Keep Listening

Move More, Live Better – Episode 2878

Move More, Live Better – Episode 2878

November 11, 2026

Course Correction Needed – Episode 2877

Course Correction Needed – Episode 2877

November 9, 2026

Sticking to Your Plan – Episode 2876

Sticking to Your Plan – Episode 2876

November 6, 2026

Join the email list

Bring Vinnie your question

Live call-in show invites, straight talk on what's actually working, and first word when NSNG® VIP opens.

A few emails a month. Unsubscribe anytime.

Guided Workouts

No-BS workouts for people who want results without spending their lives in the gym or falling for the latest fitness scam

Documentaries

Hard-hitting films that cut through the propaganda, follow the money, and tell the truth about what’s making people sick

NSNG® VIP

Where No Sugar, No Grains becomes a lifestyle, with coaching, community, and tools to keep you consistent long term.

Pure Vitamin Club

High-quality, no-nonsense supplements and coffee made without fillers, gimmicks, or hidden ingredients. Just what your body actually needs.

Become a SuperFan
Book a phone consult with Vinnie
Get the book Fitness Confidential