CHAPTERS
- 0:00 – 2:32
Performance nutrition framework: health first, then energy balance
Chris sets up the problem of eating for performance across different sports, and Tim explains his first principles approach. He starts with health foundations (micronutrients) alongside overall energy needs before worrying about sport-specific tweaks.
- •Eating for performance differs from eating to get lean
- •Start with health markers and micronutrient sufficiency
- •Use energy balance/TDEE as a baseline, then individualize
- •Micronutrient deficiencies can impair energy, recovery, and performance
- 2:32 – 4:53
Why CrossFit and high intensity break standard TDEE assumptions
Tim explains why typical calorie calculators often underestimate needs for high-intensity athletes. He highlights the compounding activity around training and the extended post-workout energy demand (after-burn).
- •TDEE formulas miss intensity and total daily movement
- •CrossFit training includes warmups, extra cardio, mobility, and high HR work
- •After-burn can meaningfully extend calorie expenditure post-session
- •Fitness level affects how large the after-burn effect is
- 4:53 – 7:34
Fixing the ‘no greens’ problem: simple micronutrient habits
They discuss the most common deficiency pattern Tim sees—lack of greens—and practical ways to add micronutrients without overcomplicating meals. The focus is on low-friction routines and a balanced plate structure.
- •Most athletes under-consume vegetables/greens
- •Green shakes/powders as a compliance tool
- •Add spinach/veg to breakfast to front-load micros
- •Use a simple plate model: protein + carbs + vegetables
- 7:34 – 9:01
Meal composition basics: where fats fit (and why avocado is controversial)
Chris pushes on the ‘thirds’ meal rule and asks where fats belong. Tim explains that fats often come from protein sources, plus add-ons like nuts or avocado, then they detour into food preferences and practicality.
- •Fats can come from meats, nuts, and add-ons (e.g., avocado)
- •Simple heuristics help avoid micromanaging meals
- •Some foods are polarizing; adherence matters more than perfection
- •Food culture and availability shape what’s realistic
- 9:01 – 10:46
Energy systems made practical: why carbs dominate most sports
Tim maps sport demands onto energy systems and shows that carbohydrates are central across most intensities and durations. Strength sports, CrossFit, and endurance differ in emphasis, but carbs remain a consistent fuel lever.
- •Energy systems shift with duration and intensity
- •CrossFit is heavily glycolytic → carb-dependent
- •Strength/power relies on ATP-PCr supported by creatine and carbs
- •Endurance uses more fat over time, but carbs still matter
- 10:46 – 15:55
Keto & paleo for performance: why they often underfuel athletes
Chris asks how keto athletes manage long events, and Tim argues keto is rarely optimal for performance. They also break down paleo’s logic and explain why it commonly fails CrossFitters due to insufficient carbohydrate intake.
- •Keto may impair performance by limiting available carbohydrate
- •Paleo is ‘ancestral eating’ but often reduces carb intake too far
- •High-intensity efforts (sprints, MetCons) rely on carbs
- •Many diet ‘wins’ are actually just unintended calorie deficits
- 15:55 – 23:43
Timing nutrition around training: pre, immediate pre, intra, post
Tim lays out a structured window-based approach for training days: pre-meal, immediate pre, intra-workout support, and post-workout recovery. He gives concrete example foods, approximate quantities, and explains why fat timing matters.
- •Pre (1–2 hrs): complex carbs + protein + some fat (e.g., oats/banana/protein/peanut butter)
- •Immediate pre: simple carbs (e.g., banana/20g sugar)
- •Intra: optional liquid carbs + BCAAs; sip during strength work
- •Post: protein + fast carbs for glycogen and immunity; keep fats low to speed absorption
- 23:43 – 32:04
High-carb reality: using liquid carbs and creatine to hit performance targets
They discuss how elite athletes reach very high carb intakes and why it’s hard for normal people to replicate. Chris frames maltodextrin/dextrose as an easy compliance tool, and Tim connects it to glycogen and creatine replenishment.
- •Elite CrossFitters may reach 500–900g carbs in peak phases
- •Volume of food is a major barrier; liquid carbs solve logistics
- •Post-workout shakes can efficiently add carbs/protein/creatine
- •Creatine supports ATP-PCr performance and can come from supplement or red meat
- 32:04 – 36:25
Competition week strategy: carb-load without changing foods
Tim explains how nutrition shifts in the lead-up to competition: keep foods familiar, minimize gut issues, and progressively increase carbohydrate intake. He also explains why uncontrolled sugar ‘smashing’ at comps is suboptimal compared to planned timing.
- •Avoid unusual, inflammatory foods close to competition (e.g., pizza)
- •Carb-load by increasing carbs while keeping fats/protein stable
- •Example ramp: +50–75g (Wed), +100g (Thu), +150g (Fri)
- •Competition days may add ~250g carbs vs baseline, but with smart timing
- 36:25 – 45:27
Gut performance & the FODMAP elimination approach
They introduce FODMAPs as a practical framework to reduce digestive distress and inflammation, especially around competition. Tim emphasizes individual tolerance and recommends a gradual elimination-and-reintroduction process to identify triggers.
- •High FODMAP foods can worsen digestion and perceived inflammation
- •Start with common culprits: wheat and dairy; track symptom changes
- •Use a 2–4 week elimination cycle, then reintroduce to confirm
- •Gut health links to mood, energy, and overall performance
- 45:27 – 57:07
Dieting vs performance: intermittent fasting tradeoffs and smarter deficits
Chris describes his current cut using intermittent fasting and fasted training, and Tim contrasts fat-loss convenience with performance costs. They then move into principles for sustainable deficits and why scale weight is a noisy metric.
- •IF can be useful for adherence in a deficit, but may reduce training quality
- •Fasted training can impair glycogen, recovery, and immunity
- •For body comp: small deficits (≈5% adjustments) and consistency win
- •Progress photos and trends beat day-to-day scale fluctuations
- 57:07 – 1:03:33
Weight classes and making weight without destroying performance
Tim explains his preferred approach for weight-category sports: arrive near stage weight weeks in advance rather than relying on extreme dehydration. They compare this to MMA-style cuts and argue for health-first competition preparation.
- •Slowly reach target weight months out to preserve training quality
- •Use minimal short-term water/salt tweaks instead of severe dehydration
- •Extreme cuts harm cognition, health, and competitive readiness
- •CrossFit’s lack of harsh weight cuts is presented as a long-term health advantage
- 1:03:33 – 1:28:13
Final toolkit: hydration, electrolytes, sleep supplements, and fad-diet skepticism
They close with practical add-ons: hydration targets, electrolyte strategies, sleep-support supplements, and protein guidelines. The conversation ends by critiquing fad diets and reinforcing a sustainable micro+macro approach with flexibility.
- •Hydration baseline (~3L/day) plus replacing workout losses; electrolytes on comp days
- •Protein guideline: ~1–2 g/kg for most people; higher can aid satiety
- •Sleep support: ZMA (zinc/magnesium), 5-HTP; avoid heavy sugar before bed
- •Fads work mainly via calorie reduction; best diet is the one you can sustain
