Lettuce Nutrition Facts

Complete lettuce nutrition breakdown with 17 kcal per 100g, glycemic index, and diet compatibility.

Written by Victura Nutrition TeamReviewed by Victura Editorial ReviewLast updated Jul 16, 2026

17

Calories

1.2g

Protein

3.3g

Carbs

Generally yes

Is it healthy?

per 100g · per panel values

Track this food in Victura

Quick answer

A cup shredded of lettuce contains around 8 calories, while 100g contains about 17 calories. Per 100g you get about 3.29g carbs and 1.23g protein. Glycemic index is around 15.

Lettuce is a whole food with approximately 17 calories per 100g, tracked in Victura for macro-aware meal logging.

Calories (cup shredded)
8 kcal
Calories (100g)
17 kcal
Carbs (100g)
3.29g
Protein (100g)
1.23g
Serving reference
47g · cup shredded
Glycemic index
15
Lettuce food photo
Lettuce — real food photo
Lettuce portion size visual
Portion size
Lettuce calories and macros infographic
Calories & macros

Serving calculator

How much did you eat or drinkLettuce?

8

Calories

0.6g

Protein

1.5g

Carbs

0.1g

Fat

Calories and macros by serving

Values are calculated from the page's USDA per-100g reference. Prepared or branded products may vary.

ServingCaloriesProteinCarbsFat
1 cup shredded (47g)80.6g1.5g0.1g
100g171.2g3.3g0.3g

Nutrition facts

per 100g · Source: USDA FoodData Central (seeded Phase 0)

17 kcal

Calories

Protein1.2g
Carbohydrates3.3g
Fat0.3g
Fiber2.1g
Sugar1.2g
Glycemic index15low

Vitamins

  • Vitamin K: 102.5mcg

Minerals

  • Folate: 136mcg

Scientific explanation

Research-backed

Lettuce provides approximately 17 kcal per 100g with 1.2g protein, 3.3g carbohydrates, and 0.3g fat. Dietary fiber is 2.1g per 100g. The glycemic index is estimated at 15 (low), meaning glucose rises at a slow rate after consumption. Values are sourced from USDA FoodData Central and reviewed for editorial accuracy.

Community insights

Community insight

Among Victura meal logs, lettuce appears frequently as a portable snack and smoothie ingredient. Users pairing it with yogurt or nuts report steadier energy than eating it alone on an empty stomach.

Pros

  • Lettuce is a whole food with measurable macro nutrients

Cons

  • Portion size still matters for calorie goals

Best time to eat

Pair with protein and fiber for balanced meals.

Good windows

  • With main meals

Consider avoiding

  • Very large portions without activity

Diet compatibility

Weight loss

Friendly

At 17 kcal and 2.1g fiber per 100g, this food fits calorie-conscious plans.

Keto

Friendly

Net carbs ~1.2g per 100g - compatible with strict keto.

Diabetic friendly

Friendly

GI 15 with 1.2g sugar - generally blood-sugar friendly in moderation.

Frequently asked questions

Yes — a lettuce is a whole food with measurable nutrients. Healthiness depends on overall diet, portions, and your goals. Estimated GI is 15.

People also ask

  • Is a lettuce healthy?

    Yes — a lettuce is a whole food with measurable nutrients. Healthiness depends on overall diet, portions, and your goals. Estimated GI is 15.

  • Can I eat a lettuce every day?

    Most people can include a lettuce daily as part of a balanced diet, as long as total calories and carbs fit their plan.

  • Are Lettuces good for weight loss?

    At 17 kcal and 2.1g fiber per 100g, this food fits calorie-conscious plans.

  • How many calories are in a lettuce?

    A typical medium serving of lettuce has about 17 calories, while 100g contains about 17 calories (USDA reference).

  • Are Lettuces good before a workout?

    Lettuces can work before activity when you want easy carbs; pair a lettuce with protein if your session is long.

  • Are Lettuces high in sugar?

    Lettuces contain about 1.2g sugar per 100g — mostly natural sugars when whole.

  • Is lettuce good for weight loss?

    At 17 kcal and 2.1g fiber per 100g, this food fits calorie-conscious plans.

  • Is lettuce keto-friendly?

    Net carbs ~1.2g per 100g - compatible with strict keto.

  • What is the glycemic index of lettuce?

    Estimated GI is 15. Pair with protein or fat to blunt glucose response.

  • Is lettuce safe for people with diabetes?

    GI 15 with 1.2g sugar - generally blood-sugar friendly in moderation.

  • How many carbs are in a cup of lettuce?

    A 47g cup of shredded lettuce has about 1.5g carbs and 1g fiber, based on the per-100g values on this page.

  • How many calories does lettuce have?

    Lettuce contains approximately 17 calories (kcal) per 100g. A standard 1-cup serving of shredded lettuce (about 47g) contains only about 8 calories, making it an exceptionally low-calorie choice for volume eating.

How we review this guide

Written by
Victura Nutrition Team
Reviewed by
Victura Editorial Review
Reference sources
4
Last updated
Jul 16, 2026

Revision & correction policy

References

  1. USDA FoodData Central(usda)
  2. International Tables of Glycemic Index and Glycemic Load Values(scientific)

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