JayNutritionist
🤼♂️ Helping the everyday grappler simplify nutrition, get in shape, and spend more time on the mats. 📍 London ⬇️ Work with me?
2.7K followers on instagram
Content insights
Expert Overview
JayNutritionist is a sports nutrition specialist focusing on performance fueling for combat sports athletes, particularly grapplers and martial artists. He teaches evidence-based nutrition principles through practical, visual tools like the "performance plates" system—a flexible framework that allows athletes to adjust their meal composition based on training intensity without the complexity of ca…
Core Philosophy
JayNutritionist operates from a core belief that there is no perfect diet, only perfect principles. He argues that understanding fundamental nutritional concepts allows you to adequately fuel anyone—from endurance athletes to grapplers—because these principles can be applied to any situation or training day. Rather than prescribing rigid meal plans, he teaches that nutrition should be approached l…
Key Principles
1. There is no perfect diet, only perfect principles. Understanding the fundamentals of nutrition allows you to fuel anyone from endurance athletes to grapplers by applying those concepts to any situation. 2. Strategies matter more than information. Like jiu-jitsu, nutrition requires a particular game plan - no one strategy fits all, and you need to find what works for you personally. 3. Match y…
Key Ideas & Frameworks
**Performance Plates Method** • Visual tool to adjust meal proportions based on training intensity without tracking apps • Three plate types: Easy (rest days, more vegetables), Moderate (regular training), Competition (high intensity, more carbohydrates) • Maintains consistent protein and adds carbohydrates progressively while reducing vegetables to accommodate higher energy needs • Allows flexibl…
Actionable Advice
- Write down your training schedule for the week and match light, moderate, or hard plates to each day based on training intensity - Stock your fridge with 2-3 protein sources (chicken, fish, eggs, Greek yogurt) and your freezer with backup options to prevent waste - Build each plate with protein in one quarter, adjust carbohydrate portions based on training demands, and fill remaining space with …
Checklists & Cheat Sheets
✅ Performance Plate Planning Checklist (Weekly) • Training schedule mapped out for the week • Plate type assigned to each day (easy/moderate/competition) • 3-5 meal examples planned and written down • Shopping list created with protein, carbs, and vegetables • Flexibility built in based on energy levels and recovery 🏠 Performance Nutrition Staples (Shopping) • Protein sources: chicken, fish, Gre…
Key Takeaways
1. There is no perfect diet, only perfect principles and fundamentals that can be applied to any situation or training day. 2. Performance plates are a visual tool that adjusts meal proportions based on training intensity without the complexity of tracking apps. 3. Easy plates emphasize protein and vegetables for rest days, moderate plates balance all macronutrients for regular training, and com…
Training videos
- Performance Plates GSRM
- Making Weight in BJJ - AJJ
- GSRM Performance Nutrition 101
- Fundamentals of Performance Nutrition & Nutrition Strategies for Injury Recovery
Recent posts
How long and hard you train for should influence your pre-training food. Carbs are our main source of fuel during training so topping up the tanks will aid exercise performance. You may need a lit
1,739 views · 49 likes · 21 Aug 2026
@hellofreshuk if you’re watching this, I have been giving you my money for the last 3 years and you have provided me with less stress and delicious foods. Hook me up will ya? Please? I even made a
624 views · 25 likes · 20 Aug 2026
Not to confuse you, but you can be overeating calories but still be under eating other nutrients. Not enough carbohydrates to fuel your training. Not enough protein to aid muscle recovery and satie
537 views · 29 likes · 19 Aug 2026
You don’t have a skill issue, you have an effort issue. You just can’t be bothered because following MOST recipes is simple. If you truly don’t have the time, that’s fine. But feeding yourself p
575 views · 42 likes · 17 Aug 2026
Add half a bag of microwave rice to up the carb content if it’s not enough food for you. Perfect 2-3 hours before training. Keep it simple. Keep it short. The simpler you keep things, the easier
1,382 views · 23 likes · 14 Aug 2026