42 Calories, 2.8g Protein, and a Pod You Can Snack On Whole

Raw sugar snap peas (FDC 170010) contain 42 calories per 100g with 2.8g protein, 0.2g fat, and 7.55g carbohydrates — a balanced profile for a vegetable snack. The USDA classifies sugar snap peas alongside snow peas as 'peas, edible-podded,' though the two differ significantly in pod shape, texture, and typical use. Sugar snap peas have plumper, rounder pods with more developed peas inside, producing a distinctly sweeter crunch [1].

Fiber at 2.6g per 100g (9% DV) contributes to the satisfying snap when you bite through the pod. Combined with 4.0g natural sugars, sugar snap peas have a noticeable sweetness that makes them one of the few vegetables children and adults readily eat raw without dressing or dip. One cup of whole snap peas (~63g) has just 26 calories while providing a filling, crunchy snack [1].

The protein-to-calorie ratio is 6.7g per 100 kcal — high for a vegetable snack. For comparison, carrots have 2.1g protein per 100 kcal, celery has 5.0g, and cucumber has 4.7g. When packed as a lunchbox snack, sugar snap peas deliver more protein per calorie than most raw vegetables typically used for snacking [1].

Why Sugar Snap Peas Taste Sweeter Than Snow Peas

Sugar snap peas and snow peas share identical USDA nutrient values — both are classified under FDC 170010 ('peas, edible-podded, raw'). The taste difference comes from pod structure, not nutrient composition: sugar snap peas have thicker pod walls with higher turgor pressure, trapping more juice and dissolved sugars inside each cell. When you bite through a snap pea, the cell walls rupture audibly, releasing sweetness in a way flat snow pea pods do not [1][2].

The 4.0g sugars per 100g — primarily sucrose, glucose, and fructose — is the same in both. But the perceived sweetness of sugar snap peas is amplified by the pod's cylindrical shape concentrating more flesh per bite. Snow peas distribute the same sugar content across a larger, thinner surface area, producing a milder flavor. For nutrition logging, the per-100g values are interchangeable [1].

Sugar snap peas were developed in the 1970s by crossing snow peas with shelled garden peas — inheriting the edible pod from snow peas and the plump, sweet pea from garden peas. This hybrid origin explains why they occupy a middle ground: more substantial than snow peas (which have minimal peas inside) but lower calorie than shelled green peas (81 kcal per 100g) because the edible pod dilutes the starchy pea content [2].

The Iron-Vitamin C Synergy Inside Every Snap Pea Pod

Sugar snap peas deliver 2.08mg iron per 100g (12% DV) alongside 60mg vitamin C (67% DV) — a pairing tracked in nutrition research on plant-based iron. Ascorbic acid has been shown to enhance non-heme iron absorption in controlled digestion models when present alongside pea-derived iron [3]. Having both nutrients concentrated in a single food means the vitamin C is present in the same serving as the iron [1].

This combination puts sugar snap peas ahead of most iron-tracking vegetables: spinach has more iron (2.71mg) but its high oxalate content inhibits absorption. Green beans have less iron (1.03mg) and less vitamin C (12.2mg). Among common vegetables, only Swiss chard and kale offer comparable iron-plus-vitamin-C pairings — but at very different calorie costs and flavor profiles [1].

One cup of raw snap peas (~63g) delivers 1.3mg iron (7% DV) and 38mg vitamin C (42% DV) at just 26 calories. As a pre-dinner snack or salad addition, this provides meaningful iron alongside the vitamin C needed to absorb it — all in a food that requires zero preparation beyond rinsing [1].

From Lunchbox to Wok: How Cooking Changes the Numbers

Raw sugar snap peas preserve the full 60mg vitamin C and 42mcg folate — the optimal baseline for nutrient logging. They're the most common preparation for snacking, crudité platters, and salads. The audible snap and burst of sweetness are unique to raw preparation, and no cooking is needed — just trim the stem end and pull the string if desired [1].

Steaming for 2-3 minutes preserves approximately 70% of vitamin C (~42mg remaining) and most minerals. This is the gentlest cooking method: it softens the pod slightly while maintaining the crunch inside. Steamed snap peas retain their bright green color and most of their volume — unlike leafy greens, they don't wilt dramatically [2].

Stir-frying is the most popular cooked preparation, especially in Asian cuisine. Brief high-heat cooking (2-3 minutes) preserves roughly 67% of vitamin C (~40mg) while adding oil-based calories (~62 kcal per 100g cooked). The added fat enhances absorption of fat-soluble vitamin K (25mcg) and beta-carotene (630mcg). Boiling causes the greatest nutrient loss — potassium drops ~20% and vitamin C drops ~53% due to leaching into water [2].

Sugar Snap Peas, Green Peas, and Edamame: Three Pods, Three Profiles

By calories and carbs: sugar snap peas (42 kcal, 7.55g carbs) sit between green beans (31 kcal, 7g carbs) and shelled green peas (81 kcal, 14.5g carbs). Edamame (frozen, prepared, FDC 168411) is the outlier at 121 kcal and 8.9g carbs — nearly 2.9x the calories of snap peas. For calorie-conscious snacking, sugar snap peas offer substantially more flavor and crunch than green beans at a modest calorie increase [1].

By protein: edamame dominates at 11.9g per 100g — 4.3x more than sugar snap peas. Shelled green peas have 5.4g — nearly double snap peas. If protein is the primary tracking target, edamame or shelled peas are clearly superior. Sugar snap peas' advantage is their lower calorie density combined with snackable convenience — no shelling, no cooking required [1].

By vitamin C: sugar snap peas lead decisively at 60mg (67% DV) versus green peas (40mg), green beans (12.2mg), and edamame (6.1mg). For a snacking vegetable, this vitamin C concentration is exceptional — eating 10 snap pea pods (~34g) with lunch adds 20mg vitamin C (22% DV) at just 14 calories, which no equivalent portion of the other three pods can match [1].

Sugar Snap Peas vs. Other Pod Vegetables (per 100g)

NutrientSugar Snap PeasSnow PeasGreen Peas (shelled)Green BeansEdamame (frozen, prepared)
Calories (kcal)42428131121
Vitamin C (mg)60604012.26.1
Iron (mg)2.082.081.471.032.27
Protein (g)2.82.85.41.8311.9
Fiber (g)2.62.65.72.74.2
Vitamin K (mcg)252524.814.426.7
Potassium (mg)200200244211436

Practical Tips for Sugar Snap Peas

  • 1

    Sugar snap peas and snow peas have identical USDA nutrition values — the difference is pod shape and texture, not nutrient content. For logging, use the same per-100g figures for either type [1].

  • 2

    One cup of raw snap peas (~63g) delivers 42% DV of vitamin C at just 26 calories — as a lunchbox snack or crudité, sugar snap peas are one of the most vitamin-C-efficient raw snacks available [1].

  • 3

    The iron-vitamin C pairing in snap peas is tracked in absorption research — the 60mg vitamin C and 2.08mg iron appear together in the same serving, and ascorbic acid has been shown to enhance non-heme iron uptake in digestion models [3].

  • 4

    Steaming preserves 70% of vitamin C while softening the pod — for maximum vitamin C, eat snap peas raw. For the best balance of texture and nutrient retention, steam for 2-3 minutes [2].

  • 5

    Sugar snap peas have half the carbs of shelled green peas (7.55g vs. 14.5g per 100g) and roughly one-third the calories of prepared edamame (42 vs. 121 kcal). For low-calorie snacking with meaningful nutrients, snap peas outperform both [1].

Frequently Asked Questions — Sugar Snap Peas

How many calories are in sugar snap peas?
Raw sugar snap peas have 42 calories per 100g. One cup of whole snap peas (~63g) has approximately 26 calories. Ten pods (~34g) have about 14 calories. Stir-fried snap peas are about 62 kcal per 100g due to added oil.
Are sugar snap peas and snow peas the same nutritionally?
Yes — the USDA classifies both as 'peas, edible-podded' with identical nutritional values (42 kcal, 2.8g protein, 60mg vitamin C per 100g). Sugar snap peas have rounder, plumper pods with more developed peas, while snow peas have flat pods. For nutrition logging, use the same per-100g values for both.
Are sugar snap peas a good source of vitamin C?
Yes — sugar snap peas provide 60mg vitamin C per 100g (67% DV), which is more than oranges (53.2mg) and comparable to strawberries (58.8mg). One cup of raw snap peas delivers about 38mg vitamin C (42% DV). Cooking reduces vitamin C: steaming preserves about 70%, stir-frying about 67%, and boiling about 47%.
Can you eat sugar snap peas raw?
Yes — raw sugar snap peas are sweet, crunchy, and ready to eat with minimal preparation. Just trim the stem end and pull the string along the seam if desired. Raw preparation preserves the maximum vitamin C (60mg) and folate (42mcg). They're one of the most popular raw vegetable snacks for both adults and children.
How do sugar snap peas compare to edamame?
Prepared edamame (FDC 168411) has 2.9x more calories (121 vs. 42 kcal), 4.3x more protein (11.9 vs. 2.8g), and 2.2x more potassium (436 vs. 200mg) per 100g. However, sugar snap peas have nearly 10x more vitamin C (60 vs. 6.1mg). Edamame is the better protein source; snap peas are the better low-calorie snack with superior vitamin C.
Do sugar snap peas have iron?
Yes — sugar snap peas provide 2.08mg iron per 100g (12% DV), which is relatively high for a vegetable. Combined with 60mg vitamin C (which enhances non-heme iron absorption), sugar snap peas are an effective plant-based iron source. One cup provides about 1.3mg iron (7% DV).

Important Notice

Nutritional values are based on USDA FoodData Central data for peas, edible-podded, raw (FDC 170010). This entry covers both sugar snap peas and snow peas. Cooked values are estimated using standard nutrient retention factors. Actual values vary by pod maturity, variety, and cooking duration. This tool is for informational and nutrition journaling purposes only — it is not a substitute for guidance from a qualified nutrition professional.

About the Author

Manish Kumar - Author
Manish KumarNASM Certified Personal Trainer (CPT)

Certified fitness professional and nutrition researcher with over 10 years of experience in the fitness and wellness industry. Founder of Food Nutrify, dedicated to making accurate, science-backed nutrition data accessible to everyone through free, easy-to-use calculators.

NASM Certified Personal TrainerSports Nutrition Specialist

References & Sources

  1. [1] USDA FoodData Central (2024). Peas, edible-podded, raw (FDC 170010). U.S. Department of Agriculture, Agricultural Research Service.
  2. [2] Wang J et al. (2022). Comparison of storage and lignin accumulation characteristics between two types of snow pea. PMC — PLoS One.
  3. [3] Srikanth R et al. (2015). Gastric digestion of pea ferritin and modulation of its iron bioavailability by ascorbic and phytic acids in caco-2 cells. PMC — World Journal of Gastroenterology.