Summary
Dr. Berg explains the role of Vitamin B1 (thiamine) in energy production during exercise, highlighting its involvement in mitochondrial function and cellular respiration. He recommends supplementing with B1 before workouts to boost energy and endurance, while also advising it be taken as part of a B-complex to avoid imbalances.
Key Takeaways
- Vitamin B1 (thiamine) is directly involved in mitochondrial energy production, playing a role in five different enzymes related to metabolism
- B1 helps convert food into ATP, the body’s primary energy currency
- It also helps clear metabolic waste products like lactate and ammonium from the body
- The more carbohydrates you consume, the more B1 your body requires
- People on a ketogenic diet need less B1, but supplementation is still recommended
- B1 is considered an anti-fatigue nutrient that supports endurance during physical activity
- Taking B1 in isolation long-term may cause deficiencies in other B vitamins — always pair with a B-complex
- Nutritional yeast is a recommended natural source of B vitamins
Details
How B1 Supports Energy Production
Vitamin B1 (thiamine) is centrally involved in cellular respiration — the process by which the body uses oxygen to convert food into usable energy. It supports five key enzymes in this process:
- Breaking down carbon atoms from food to release energy as ATP
- Clearing metabolic byproducts such as lactate and ammonium, which accumulate during exercise and contribute to fatigue
B1 and Carbohydrate Intake
There is a direct relationship between carbohydrate consumption and B1 demand. Higher carb diets require more B1 to process the additional glucose. Those following a ketogenic diet have lower B1 requirements due to reduced carbohydrate metabolism, though supplementation is still advised for its anti-fatigue benefits.
Pre-Workout Protocol
Dr. Berg recommends taking B1 approximately 30 minutes before exercise to experience a noticeable increase in energy levels and endurance during the workout.
Supplementation Recommendations
- Take B1 as part of a B-complex rather than in isolation
- Long-term use of isolated B1 can deplete other B vitamins
- Nutritional yeast is highlighted as a whole-food source that naturally provides the full B-vitamin complex alongside B1
- Additional standalone B1 can be taken on top of the complex for enhanced workout performance