Calories in Raw Rhubarb

Keto Friendly Low Sugar
Instrument — Food Profile
100g
Calories

21.00

kcal
Protein

0.90

g
Carbs

4.54

g
Fat

0.20

g
Fiber

1.80

g
Sugar

1.10

g

Curious about the nutritional profile of raw rhubarb? Whether you are tracking your macros or just want to know how many calories it contain, you are in the right place. A standard 100g serving of raw rhubarb provides 21.00 calories, 0.90g of protein, and 4.54g of carbs.

Serving Size Variations

Portion Size Calories Protein Carbs Fat
100g (Standard) 21.00 kcal 0.90g 4.54g 0.20g
1 oz (28g) 6 kcal 0.3g 1.3g 0.1g
stalk (51g) 11 kcal 0.5g 2.3g 0.1g
cup, diced (122g) 26 kcal 1.1g 5.5g 0.2g

Vitamins & Minerals

Nutrient Amount
Vitamin C 8.00 mg
Vitamin K 29.30 mcg
Thiamin (B1) 0.02 mg
Riboflavin (B2) 0.03 mg
Niacin (B3) 0.30 mg
Pantothenic Acid (B5) 0.09 mg
Vitamin B6 0.02 mg
Folate (B9) 7.00 mcg
Calcium 86.00 mg
Iron 0.22 mg
Magnesium 12.00 mg
Potassium 288.00 mg
Sodium 4.00 mg
Zinc 0.10 mg
📊 Data Source: USDA FoodData Central Database (FDC ID: 167758)
🩺 Reviewed by Ashwini Yadav Last Updated: July 2026

Nutrition FAQs

Can I eat raw rhubarb on a keto diet?

Yes, raw rhubarb is highly keto-friendly with only 4.54g of carbs per 100g.

How many calories is in 1 stalk of raw rhubarb?

A single stalk (51g) of raw rhubarb provides 11 calories.

How many calories is in 1 cup, diced of raw rhubarb?

A single cup, diced (122g) of raw rhubarb provides 26 calories.

How many calories is in raw rhubarb?

100 grams of raw rhubarb contains exactly 21.00 calories.

Does raw rhubarb help build muscle?

It contains 0.90g of protein per 100g, which is moderate.