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Episode 218

Keto 101: Beginner’s Guide to Meals, Snacks, and Carb Limits

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Keto 101: Beginner’s Guide to Meals, Snacks, and Carb Limits

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About the host

Bret Scher, MD

Bret Scher, MD

Medical Director, Metabolic Mind and Baszucki Group

Bret is the host of the Metabolic Mind YouTube channel and podcast. He is a board-certified cardiologist, lipidologist, and leading expert in therapeutic uses of metabolic therapies, including ketogenic diets. Prior to joining Baszucki Group, Bret was the medical director at DietDoctor.com, an online platform promoting improving metabolic health through low-carb nutrition, where he was a content creator and medical reviewer. Earlier in his career, he worked as a cardiologist in San Diego. Bret has spent most of his 20-year career as a preventive cardiologist, helping people improve their metabolic health and preventing heart disease using low-carb nutrition and lifestyle interventions. His deep passion for educating the public about the benefits of metabolic therapies grew from his experience with the prevailing medical teaching, which frequently misrepresents nutrition science and undervalues metabolic health. Bret received an MD from The Ohio State University College of Medicine and a BS in Biology from Stanford University. He grew up in San Diego and began competing in triathlons at an early age, which helped fuel his love of health and fitness. He continues to enjoy spending time outdoors mountain biking, swimming, hiking, and playing baseball with his two boys.
Learn more about Bret

Bret Scher, MD

Medical Director, Metabolic Mind and Baszucki Group

Bret is the host of the Metabolic Mind YouTube channel and podcast. He is a board-certified cardiologist, lipidologist, and leading expert in therapeutic uses of metabolic therapies, including ketogenic diets. Prior to joining Baszucki Group, Bret was the medical director at DietDoctor.com, an online platform promoting improving metabolic health through low-carb nutrition, where he was a content creator and medical reviewer. Earlier in his career, he worked as a cardiologist in San Diego. Bret has spent most of his 20-year career as a preventive cardiologist, helping people improve their metabolic health and preventing heart disease using low-carb nutrition and lifestyle interventions. His deep passion for educating the public about the benefits of metabolic therapies grew from his experience with the prevailing medical teaching, which frequently misrepresents nutrition science and undervalues metabolic health. Bret received an MD from The Ohio State University College of Medicine and a BS in Biology from Stanford University. He grew up in San Diego and began competing in triathlons at an early age, which helped fuel his love of health and fitness. He continues to enjoy spending time outdoors mountain biking, swimming, hiking, and playing baseball with his two boys.
Learn more about Bret

Key Highlights

  • Most people aim to keep carbohydrates around 20-30 grams per day to reach ketosis, a dramatic reduction from the roughly 300 grams typical in a standard American diet.
  • A ketogenic diet can be built around various eating patterns, including carnivore, Mediterranean, vegetarian, or vegan, with protein from foods like eggs, meat, fish, or tofu, and healthy fats from sources like olive oil, avocado, and butter.
  • Rather than labeling foods strictly “keto” or “not keto,” Scher prefers describing foods as “compatible” with ketosis, since portion size matters, like the difference between a few strawberries with cream versus an entire bowl.
  • Sample meals throughout the day, like eggs with spinach for breakfast or salmon with roasted vegetables for dinner, typically contain only about 4-5 grams of net carbs each while remaining filling and satisfying.
  • Diet is the biggest lever for achieving ketosis, but sleep, stress, and physical activity also meaningfully influence metabolism and should be considered as part of an overall approach.

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