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
Ever been worried the recommendations for pre-training foods are “too processed” ? Most of the usual go-to options get recommended for a reason. They’re easy to digest and high in carbs, which is
31 likes · 9 Jul 2026
As long as you are ticking the right boxes, I don’t care what the food actually is. I just care about the composition. Use this structure: ✅ Protein: 20-40g ✅ Carbs: 40-100g+ (more depending on tr
502 views · 15 likes · 8 Jul 2026
I am going to lose 5kg of fat mass in 6 weeks. It’s not a crazy amount but certainly on the higher end of reasonable amount of weight to lose per week. I want to be leaner for the latter end of th
759 views · 39 likes · 6 Jul 2026
It really is this simple. If you want to add some extra steps: - Big glass of water to start your day. Particularly if it’s hot. - Make sure your pee is a pale yellow colour. Keep it all as sim
953 views · 55 likes · 2 Jul 2026
The less you tax your willpower and minimise effort, the easier you’ll find eating better. Edit a meal you regularly have to match the demands of the day and or training session. If you want to le
593 views · 20 likes · 1 Jul 2026