From the Lab

IIFYM for Regal: 325-375 lbs

May 12, 2026 · By Xavier Savage · Body Archetypes

IIFYM for Regal: 325-375 lbs

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At 325-375 lbs, fat loss requires medical supervision before any dietary change. This guide provides a framework to discuss with your doctor, not a self-directed plan.

Target range: 1,400-1,800 calories daily, with macro priorities your medical team can adjust based on your medications and health status.

Macro Targets

  • Protein: 150-200g daily. Highest priority for preserving muscle and maximizing satiety on limited calories.
  • Carbohydrates: 100-180g daily. Primarily from vegetables and limited whole grains. Blood sugar management matters at this weight.
  • Fats: 40-65g daily. Measured carefully. Every gram counts when calories are restricted.

Show these numbers to your doctor. They may adjust based on your medications, kidney function, and metabolic health. Their adjustments take priority over any general recommendation.

How to Track

Use any free app. MyFitnessPal, Cronometer, MacroFactor. They all work.

Spend one week weighing your food. After that, you can eyeball most things. But that first week teaches you what portions actually look like. Most people underestimate their intake by 20-30%.

Pre-log your day in the morning. Enter breakfast, lunch, dinner, and your shake. See what’s left. Fill the gaps intentionally. This prevents the 9 PM panic when you realize you’re 800 calories short of your target or 400 calories over.

Sample Day

Breakfast: Protein shake with 2 scoops whey, unsweetened almond milk, 1 tbsp peanut butter. Banana on the side. (~350 cal, 30g P)

Lunch: 5 oz rotisserie chicken, large bagged salad with olive oil dressing. (~450 cal, 50g P)

Snack: Greek yogurt cup. (~150 cal, 15g P)

Dinner: 6 oz baked fish, 2 cups steamed vegetables, small portion of rice. (~500 cal, 35g P)

Evening: Protein shake. (~250 cal, 25g P)

Daily total: ~1,700 calories, 155g protein. Show this framework to your doctor and adjust based on their guidance.

Adherence Tips

  • Buy pre-cooked protein. Rotisserie chicken, deli meat, pre-cooked eggs. Remove preparation barriers.
  • Keep protein shakes within arm’s reach. When cooking is difficult, shakes keep you on target.
  • Order groceries online. Conserve your energy for recovery, not logistics.
  • Track only protein and calories at first. One or two numbers to manage, not twenty.
  • Weigh weekly and share trends with your doctor. They need data to adjust your care.

Medical Supervision

At this weight, changing your diet affects medications, organ function, and metabolic health. See your doctor before making any changes.

Ask specifically about safe calorie minimums, protein targets based on your kidney function, and how often to check blood work as you lose weight. If bariatric surgery is discussed, ask about pre-surgical protein optimization.

This guide is a starting point for that conversation, not a replacement for professional care.

Bottom Line

Track your food. Hit your protein. Stay in your calorie range. Train consistently. The results follow.

There are no magic foods. No forbidden ingredients. Just numbers, executed daily, until the accumulation becomes visible.

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Xavier Savage

Founder, XPERFORMANCELAB

I do not shape muscle. I shape structure. The person you become is the person you construct.

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