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In this “Ask Me Anything” (AMA) episode, Peter explains how to evaluate sugar and its substitutes in the context of health. Peter explores the role of sweeteners in three common use-cases – beverages, protein supplements, and sweet treats – and breaks down how our evolutionary craving for sweetness now clashes with today’s food environment. He examines whether sugar is uniquely fattening, the hormonal effects of sugar consumption, and the significance of timing in sugar intake. The episode compares natural versus refined sugars, sugar in beverages versus in solid foods, and the pros and cons of popular sweeteners including saccharin, aspartame, sucralose, allulose, and sugar alcohols like erythritol and xylitol. With a focus on weight management, glycemic impact, gut health, and long-term safety, this episode offers a comprehensive guide to navigating the sweetener landscape with clarity and nuance.

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We discuss:

• A quick tangent on chess and parenting [2:30];

• Overview of key scenarios for evaluating sugar and sweeteners [6:15];

• Why humans are hardwired to crave sweetness [13:30];

• Evaluating whether sugar is uniquely fattening or more harmful than other macronutrients under isocaloric conditions [15:15];

• Why sugar drives appetite: low satiety, insulin response, and reward system activation [18:45];

• How sugar type, liquid vs. solid form, and processing level influence appetite and metabolic impact [20:15];

• Add