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Performance Fuel

Peri-workout nutrition · TDEE · electrolytes

Client Inputs
kg
yrs
cm
Body Weight kg
BMR kcal/day
TDEE Today kcal/day
Carb Load g/day
2–3 HOURS BEFORE YOUR SESSION
Carbohydrates
Protein g — muscle priming
Fluid ml (400–600 ml, 2 hrs before)
Fat Keep low— slows gastric emptying
Pre-workout food ideas
White rice Oats Banana Sourdough toast Rice cakes Potato Sports drink Low-fat yogurt Honey
💡
Eating <1 hr before? Stick to simple, low-fibre carbs only (banana, rice cakes, sports gel). Avoid protein and fat — they slow digestion and can cause GI distress mid-session.
Carbs / hr g/hr
Sodium / hr mg/hr
Fluid / hr ml/hr
Potassium / hr mg/hr
Total carbs (session) g
Intra-workout fuel ideas
Sports gels Chews / blocks Banana Medjool dates Sports drink Rice cakes (savoury) Electrolyte tabs Gummy bears
💧
Sip don't gulp. Spread fluid intake evenly — ~150–250 ml every 15–20 min. Drinking too much at once can cause bloating and slow absorption.
WITHIN 30–60 MIN POST-SESSION
Protein g — muscle protein synthesis
Carbohydrates g — glycogen replenishment
Rehydration target ml (150% of sweat loss)
Sodium mg — accelerates fluid retention
Post-workout food ideas
Chicken + rice Greek yogurt + fruit Protein shake + banana Eggs + toast Cottage cheese Tuna + potato Chocolate milk Salmon + sweet potato
💪
MPS window matters most after strength work. Aim for 0.4 g/kg protein per meal, including leucine-rich sources (whey, chicken, eggs). The anabolic window is ~2–4 hrs, but sooner is always better.
Loading Protocol
Carb loading foods
White pasta White rice Bread / rolls Potato / mash Bagels Sports drink Banana Pancakes + syrup Rice cakes + jam
⚠️ Race morning: Stick to familiar, low-fibre foods. Don't try anything new on race day — 1–2 hrs before, have a small, easily digestible carb meal (e.g. porridge, toast + banana).
Daily Electrolyte Targets
Session Losses (estimated)
Food sources
SODIUM
Salt / sea salt Soy sauce Pickles Sports drink Electrolyte tabs Deli meats Cheese
POTASSIUM
Banana Sweet potato Avocado Spinach Coconut water Beans / lentils Potato
MAGNESIUM
Dark chocolate Almonds / cashews Pumpkin seeds Leafy greens Black beans Tofu Whole grains
TOTAL DAILY ENERGY EXPENDITURE
kcal / day (training day) · Rest day ≈ kcal
Energy Components
NEAT matters more than most people think. Non-exercise activity thermogenesis can vary by up to 2,000 kcal/day between individuals with the same body weight. Small movement habits (walking meetings, standing desk, steps) compound over time.
References Based on Jeukendrup (2011), Burke et al. (2011), ISSN Position Stand (2017), ACSM fluid guidelines, Mifflin-St Jeor (1990)
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