"Ask Me Anything About Ketosis & Ironman" Premium Podcast with Ben Greenfield

29 Jan 2026 · 50 min
Episode

29 Jan 2026 · 50 min

0:00

Ben Greenfield hosts a live premium AMA focused on using ketosis and fatty-acid metabolism in athletic performance (particularly Ironman training). He answers listener questions about supplements (bitter melon, oxaloacetate), fermented foods and SIBO, bread/ancient grains, minimalist/barefoot running, cost and logistics of low-carb eating, and pacing/nutrition strategy for short races (5K). The episode mixes practical how-to, personal anecdotes (a carbohydrate binge and its short-term performance effects), and product/measurement mentions (blood ketone monitoring).

Questions this episode answers

Bitter melon can markedly lower post-meal blood glucose; taking it ~30 minutes before or within ~30 minutes after a high-carb meal can mitigate glucose spikes and slightly raise subsequent blood ketone readings, but it can cause hypoglycemia if taken fasted.

Oxaloacetate upregulates conversion of lactic acid (lactate) into glucose in the liver, reducing leg burn during high-lactate interval/strength workouts; less noticeable for long steady aerobic efforts.

Ben cites a Quintron home breath test costing about US$150.

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