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Carl's Jr.
Low Carb Thickburger (Lettuce-Wrapped, 1/3 lb)
Low Carb Thickburger (Lettuce-Wrapped, 1/3 lb) at Carl's Jr. has 420 calories, 25g protein, 8g carbs and 33g fat — sourced from Carl's Jr. Nutrition, not AI guesses. Charbroiled 1/3 lb beef patty, American cheese, lettuce, tomato, onion, pickle, mayo, wrapped in iceberg lettuce (no bun).
At Carl's Jr., the Low Carb Thickburger (Lettuce-Wrapped, 1/3 lb) is keto- and low-carb-friendly and light on calories. That works out to 6g of protein per 100 calories — 12g below the 37g Carl's Jr. average. Its macros land at roughly 24% of calories from protein, 8% from carbs and 71% from fat. Contains dairy, eggs.
Source: Carl's Jr. Nutrition ↗, last verified Jun 17, 2026. Menus change periodically; values may vary by location. How we verify →
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Low Carb Thickburger (Lettuce-Wrapped, 1/3 lb) — common questions
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