FitFighterKcal Logo
FitFighterKcalGLP-1 Nutrition Companion
Back to All Clinical Tools
Whole Foods Index • Leucine Efficiency

GLP-1 Protein Density & Gastric Tolerance Database

When gastric volume is capped at 1 cup per meal, every calorie must carry maximum protein density without triggering delayed-emptying nausea. Filter foods by tolerance score.

isolate
Tolerance:5/5

Cold-Filtered Whey Protein Isolate

1 scoop (30g)
27g
Protein
110
Calories
24.5g
/ 100 kcal

Near zero lactose; highest biological value (BV 104) for muscle synthesis.

Ranked by Leucine DensityUse in Plan
seafood
Tolerance:5/5

Pacific Halibut / Cod (Steamed/Baked)

150g fillet
32g
Protein
135
Calories
23.7g
/ 100 kcal

Extremely tender muscle fibers digest easily without sulfur fermentation.

Ranked by Leucine DensityUse in Plan
poultry
Tolerance:4/5

Skinless Chicken Breast (Poached/Grilled)

150g
39g
Protein
165
Calories
23.6g
/ 100 kcal

Classic gold standard lean protein; best shredded to ease digestion.

Ranked by Leucine DensityUse in Plan
poultry
Tolerance:4/5

99% Lean Ground Turkey Breast

150g cooked
38g
Protein
170
Calories
22.4g
/ 100 kcal

Ultra-low fat prevents post-prandial esophageal regurgitation.

Ranked by Leucine DensityUse in Plan
isolate
Tolerance:5/5

Bone Broth (Simmered Beef/Chicken)

1 cup (240ml)
10g
Protein
45
Calories
22.2g
/ 100 kcal

Provides glycine and collagen peptides; easiest way to hydrate with protein.

Ranked by Leucine DensityUse in Plan
dairy
Tolerance:5/5

Liquid Egg Whites

1 cup (240g)
26g
Protein
125
Calories
20.8g
/ 100 kcal

Zero fat, maximum leucine bioavailability, rapid gastric transit.

Ranked by Leucine DensityUse in Plan
dairy
Tolerance:5/5

Icelandic Skyr (0% Milkfat)

1 cup (170g)
19g
Protein
100
Calories
19g
/ 100 kcal

Naturally concentrated dairy with gut-friendly live active cultures.

Ranked by Leucine DensityUse in Plan
dairy
Tolerance:4/5

0% Fat Low-Sodium Cottage Cheese

1 cup (226g)
28g
Protein
160
Calories
17.5g
/ 100 kcal

High micellar casein provides sustained amino acid release over 6 hours.

Ranked by Leucine DensityUse in Plan
poultry
Tolerance:3/5

Grass-Fed Beef Sirloin (Trimmed)

150g cooked
36g
Protein
210
Calories
17.1g
/ 100 kcal

Rich in highly bioavailable heme iron and zinc; chew thoroughly.

Ranked by Leucine DensityUse in Plan
seafood
Tolerance:4/5

Wild Alaskan Salmon Fillet

150g
34g
Protein
220
Calories
15.5g
/ 100 kcal

Rich in anti-inflammatory EPA/DHA Omega-3s; moderate healthy fat.

Ranked by Leucine DensityUse in Plan
plant
Tolerance:4/5

Extra Firm Organic Tofu

150g
18g
Protein
120
Calories
15g
/ 100 kcal

Complete plant protein profile; gentle on gastrointestinal lining.

Ranked by Leucine DensityUse in Plan
plant
Tolerance:3/5

Edamame (Steamed Shelled Soybeans)

1 cup (155g)
18g
Protein
190
Calories
9.5g
/ 100 kcal

Contains soluble fiber; consume in moderation on slow-motility days.

Ranked by Leucine DensityUse in Plan