This is for boxing, MMA, Muay Thai and other fighters who need clear steps. You will learn a safer way to make weight without feeling wrecked.
Key takeaways
- The safest weight cuts start early so most of the loss comes from fat over weeks, not all/most of it on fight week
- A steady pace of weight loss is usually safer than crash dieting because it helps you keep muscle and energy for training.
- Fight week should focus on glycogen and gut weight first before using any water manipulation.
- Lowering carbs can reduce glycogen and the water stored with it, which lowers scale weight.
- Reducing fibre for a few days can reduce gut weight for some fighters.
- Water and sodium needs should be individual to the fighter
- Big weight cuts can reduce performance and can be dangerous, so they should never be your main plan.
- If you feel dizzy, confused, faint, stop the cut and get medical help straight away.
- If you are far from the weight close to the fight, consider moving up a weight class can be the safest choice.
A step-by-step visual guide to safely cutting weight for a fight while protecting health and performance.
This infographic outlines a structured approach to cutting weight safely for combat sports competition. It divides the process into three phases – training camp, taper, and fight week – explaining when to focus on gradual fat loss, fine-tuning body weight, and carefully managing glycogen, fibre, and hydration before weigh-in. The guide also includes a practical fight week checklist, highlights common mistakes such as rapid weight loss and unsupervised dehydration, and identifies important warning signs that require medical attention. Overall, it promotes a safe, evidence-based weight-cutting strategy that prioritizes athlete health, performance, and competition readiness.
Get the exact fight week strategies we use with champions, laid out step by step.
Why fighters cut weight (and why it can be risky)
Fighters cut weight to weigh in lighter, then regain weight after. The risky part is dehydration done badly or too aggressively.
Why fighters cut weight (and why it can be risky)
Fighters cut weight to weigh in lighter, then regain weight after. The risky part is dehydration done badly or too aggressively.
The 3 phases (simple and safer)
1) Camp phase (8–12+ weeks out): lose fat slowly
Goal: get close to your weight by losing body fat, not water.
Simple rules
- Eat mostly whole foods.
- Protein at each meal (chicken, eggs, yoghurt, fish, lean beef, tofu).
- Carbs around training (rice, oats, potatoes, pasta, fruit).
- Sleep and stress matter.
2) Taper phase (2–3 weeks out): get “nearly on weight”
Goal: be close enough that fight week does not require extreme measures.
3) Fight week (final 7 days): glycogen and gut weight first, then a planned water approach (if needed)
Goal: reduce scale weight with simple, controlled steps.
Step-by-step plan (easy checklist)
8–12 weeks out (camp)
- Aim for steady weekly loss.
- Keep training fuelled.
- Track weight 3–7 mornings per week under the same conditions.
8–12 weeks out (camp)
- Aim for steady weekly loss.
Keep training fuelled. - Track weight 3–7 mornings per week under the same conditions.
Final 7 days (fight week)
Lower carbs if you need to reduce glycogen and the water stored with it. Reduce fibre for 3–5 days to lose gut weight.
- Keep food simple and repeatable.
- If water manipulation is required, it should be structured and timed close to weigh-in.
- If you need dehydration methods, do it only with qualified support.
Common mistakes
- Cutting water too early in the week and ruining training.
- Dropping carbs to zero suddenly and feeling flat.
- Losing weight too fast and losing muscle.
- Copying a pro’s cut without their medical team.
- Using diuretics or laxatives.
Safety warnings (do not skip)
- Stop the cut and get medical help if you have:
- confusion, fainting, severe dizziness
- chest pain, severe headache, vomiting
- you stop peeing or your urine is very dark
FAQs
What is the safest way to cut weight?
Slow fat loss in camp, then structured fight-week steps starting with glycogen and gut weight.
Should I cut carbs?
In camp, no. In fight week, carbs are often lowered if you need to reduce glycogen weight.
Is sweating in a sauna safe?
It can be risky. Only with qualified supervision.
What if I am still heavy 3 days out?
It may be safer to move up a class or get qualified help.
Conclusion
A good weight cut starts early and stays structured. If you cut fat slowly in camp and keep fight week controlled and simple, you are far more likely to feel strong on fight night.
Or contact us: conditionnutrition@yahoo.com | +61 467 079 003
Sources used
Health disclaimer: Educational only. Weight cutting can be dangerous. Always speak to a qualified professional for personalised advice, especially if you feel unwell.
