Nutrition for combat athletes who need to make weight and perform.

Personalized nutrition, weight-cut, and rehydration systems for MMA, boxing, BJJ, and wrestling athletes preparing for competition.

Trusted by 30+ fighters · 23K+ followers · Built by a performance nutritionist and combat sports competitor

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Takes 2 minutes. I personally review every application.

Featured · client story

0:42

Billy Markle cut to 135 lbs with a smoother fight week, better energy, and less stress.

BEFORE WORKING WITH ME

AFTER WORKING WITH ME

About · 01

Built by a performance nutritionist, for serious athletes.

Duncan Ness — Founder & Head Coach

B.S.

Foods & Nutrition

M.S.

Clinical Nutrition Student

30+

Athletes Coached

23K+

Instagram Followers

I'm Duncan Ness, founder of Ness Nutrition. I help MMA, boxing, BJJ, and wrestling athletes make weight with structured fight camp nutrition, evidence-based weight-cut systems, and clear rehydration plans.

I combine a background in Foods & Nutrition, graduate training in Clinical Nutrition, and real combat sports experience to build practical systems fighters can actually follow during camp.

Most fighters do not lose fights because they are lazy.

They lose performance because their nutrition system is guessing.

Cutting too much weight too late
Under-fueling hard sessions
Only water-loading without a real plan
Showing up flat, cramped, or drained

My job is to remove the guesswork and give you a clear system from camp to weigh-in to fight night.

Services · 02

Ways to work with me.

From one-on-one fight camp coaching to self-paced education, pick the system that matches your stakes.

01 / Coaching

1:1 Fight Camp Coaching

Best for fighters with an upcoming fight who want direct support from camp through weigh-in.

Custom calories, macros, and hydration targets
Weekly check-ins and video reviews
Fight week weight-cut protocol
Rehydration and refuel plan
Daily adjustments based on body weight and training
Direct text access

Client Results

Apply for 1:1 Coaching By application only

02 / Community

Weight Cut Academy

Best for fighters who want the system and education without full 1:1 coaching.

Step-by-step modules
Same-day and day-before weigh-in protocols
Calculators, templates, and grocery lists
Community Q&A calls
Access to other fighters using the system

Member Results

Join Weight Cut Academy $19 / month · cancel anytime

Proof · 03

Real results from real athletes.

206 → 170 lb

Cayson Hammer

MMA · 170 lb

152 → 135 lb

Christian Dexter

Kickboxing · 135 lb

145 → 135 lb

Miguel Elizondo

Boxing · 135 lb

161 → 145 lb

Eddie Rivera

MMA · 145 lb

165 → 147 lb

Lazaro Diaz

Boxing · 147 lb

"Also my coaches, my girl, and my family all say thank you. I've never been happier in a camp cutting weight, you're the man bro."

Raymond Lawley

MMA · Featherweight

"Thank you for helping me make weight man! Fight night I felt amazing and during the cut I felt good."

Miguel Elizondo

Boxer · Featherweight

"This has been an eye-opening, life-changing camp man."

Cayson Hammer

MMA · Welterweight

"This has legit been the easiest cut of my life, like I've made 140 or 145 and felt worse than I do now."

Billy Markle

MMA · Bantamweight

"I am really happy, the cut was honestly easier than I expected. I felt really good in terms of energy, and the cut on fight week went really good."

Hugo Costa

MMA · Light-Heavyweight

"Thank you very much for everything. Honestly I was really lost with this process… your help was so valuable and it made it much easier for me."

Alexandra Genin

WMMA · Bantamweight

FAQ · 04

Common questions.

Yes, but the plan has to account for your training load, weigh-in timeline, and current body composition. The goal is not just to make the scale drop. The goal is to keep you fueled enough to train hard while bringing your weight down strategically.

Most fighters need 6–12 weeks depending on how much weight they need to lose. The earlier we start, the less aggressive the cut has to be. The goal is to avoid relying on desperate fight-week tactics to make weight.

Yes. If your sport requires a weigh-in, I build the fight-week plan around your weigh-in time, weight class, training schedule, sauna access, and rehydration window. This can include food volume, carbs, sodium, fluid intake, and passive sweating when appropriate.

Not forever. Most athletes track closely at the start so we can establish accurate targets. Once the plan is dialed in, many athletes move to a more flexible meal-based structure with weekly check-ins and adjustments.

Most athletes need 10–15 minutes per day for tracking, updates, and communication, plus one weekly check-in. The system is built to reduce confusion during camp, not add more stress.

Combat sports are my specialty, especially MMA, boxing, BJJ, and wrestling. I also work with athletes who need to improve body composition while maintaining performance, but the main focus of this coaching is fight camp nutrition and weight cuts.

This is not just a meal plan. You get a full system built around your training, weigh-in timeline, body weight trends, fight-week needs, and performance. The goal is to help you make weight with structure instead of guessing.

I review your application personally. If it looks like a good fit, I'll reach out with the next steps and we'll map out what support would make the most sense for your situation.

Final call · 05

Ready to make weight with a real plan?

Join the athletes who've transformed their results — without sacrificing a single session. I keep my 1:1 roster intentionally small so each fighter gets direct support.

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