SR LegacyFruits and Fruit Juicesvalues per 100 g

Grapefruit, raw, white, all areas

Energy

33 kcal / 100 g

Nutrients reported

Measured portions

Portion converter

Nutrition data is published per 100 g. Pick a portion to see what it works out to.

PortionHow manyOr enter grams

Total weight

230 g

1 (cup sections, with juice) × 1 — using the published 230 g per portion

Nutrient	Per 100 g	In this amount
Energy(chosen energy value)	33 kcal	76 kcal
Water	90.5 g	208.1 g
Energy	138 kJ	317 kJ
Protein	0.69 g	1.59 g
Total lipid (fat)	0.10 g	0.23 g
Ash	0.33 g	0.76 g
Carbohydrate, by difference	8.41 g	19.3 g
Fiber, total dietary	1.10 g	2.53 g
Sugars, Total	7.31 g	16.8 g
Calcium, Ca	12.0 mg	27.6 mg
Iron, Fe	0.06 mg	0.14 mg
Magnesium, Mg	9.00 mg	20.7 mg
Phosphorus, P	8.00 mg	18.4 mg
Potassium, K	148.0 mg	340.4 mg
Sodium, Na	0 mg	0 mg
Zinc, Zn	0.07 mg	0.16 mg

Estimates. Portion weights are the published averages for this food. A cup of chopped carrot and a cup of sliced carrot do not weigh the same, so treat the result as approximate.

About zeros. A value of 0 may mean the nutrient is genuinely absent, or that it was not measured / was below the limit of detection. USDA does not distinguish between the two, so this site does not use 0 values for filtering or for "free from" claims.

This converter does not use zero values to claim a food is free of anything, and it is not dietary or medical advice.

Nutrition per 100 g

91 nutrients reported for this food. "Samples" is the number of analytical samples the value is based on.

Nutrient	Per 100 g	Samples
Energy(chosen energy value)	33 kcal	0
Water	90.5 g	34
Energy	138 kJ	0
Protein	0.69 g	35
Total lipid (fat)	0.10 g	0
Ash	0.33 g	33
Carbohydrate, by difference	8.41 g	0
Fiber, total dietary	1.10 g	0
Sugars, Total	7.31 g	0
Calcium, Ca	12.0 mg	27
Iron, Fe	0.06 mg	32
Magnesium, Mg	9.00 mg	59
Phosphorus, P	8.00 mg	34
Potassium, K	148.0 mg	43
Sodium, Na	0 mg	19
Zinc, Zn	0.07 mg	1
Copper, Cu	0.05 mg	33
Manganese, Mn	0.01 mg	32
Selenium, Se	1.40 µg	5
Vitamin C, total ascorbic acid	33.3 mg	27
Thiamin	0.04 mg	27
Riboflavin	0.02 mg	0
Niacin	0.27 mg	27
Pantothenic acid	0.28 mg	0
Vitamin B-6	0.04 mg	19
Folate, total	10.0 µg	30
Folic acid	0 µg	0
Folate, food	10.0 µg	30
Folate, DFE	10.0 µg	0
Choline, total	7.70 mg	0
Vitamin B-12	0 µg	0
Vitamin B-12, added	0 µg	0
Vitamin A, RAE	2.00 µg	0
Retinol	0 µg	0
Carotene, beta	14.0 µg	3
Carotene, alpha	8.00 µg	3
Cryptoxanthin, beta	3.00 µg	1
Vitamin A, IU	33 IU	0
Lycopene	0 µg	1
Lutein + zeaxanthin	10.0 µg	1
Vitamin E (alpha-tocopherol)	0.13 mg	0
Vitamin E, added	0 mg	0
Vitamin D (D2 + D3), International Units	0 IU	0
Vitamin D (D2 + D3)	0 µg	0
Vitamin K (phylloquinone)	0 µg	0
Fatty acids, total saturated	0.01 g	0
SFA 4:0	0 g	0
SFA 6:0	0 g	0
SFA 8:0	0 g	0
SFA 10:0	0 g	0
SFA 12:0	0 g	0
SFA 14:0	0 g	0
SFA 16:0	0.01 g	0
SFA 18:0	0.00 g	0
Fatty acids, total monounsaturated	0.01 g	0
MUFA 16:1	0.00 g	0
MUFA 18:1	0.01 g	0
MUFA 20:1	0 g	0
MUFA 22:1	0 g	0
Fatty acids, total polyunsaturated	0.02 g	0
PUFA 18:2	0.02 g	0
PUFA 18:3	0.01 g	0
PUFA 18:4	0 g	0
PUFA 20:4	0 g	0
PUFA 20:5 n-3 (EPA)	0 g	0
PUFA 22:5 n-3 (DPA)	0 g	0
PUFA 22:6 n-3 (DHA)	0 g	0
Fatty acids, total trans	0 g	0
Cholesterol	0 mg	0
Phytosterols	17.0 mg	0
Tryptophan	0.01 g	0
Threonine	0.01 g	0
Isoleucine	0.01 g	0
Leucine	0.01 g	0
Lysine	0.02 g	0
Methionine	0.01 g	0
Cystine	0.01 g	0
Phenylalanine	0.04 g	0
Tyrosine	0.01 g	0
Valine	0.01 g	0
Arginine	0.08 g	0
Histidine	0.01 g	0
Alanine	0.02 g	0
Aspartic acid	0.12 g	0
Glutamic acid	0.18 g	0
Glycine	0.01 g	0
Proline	0.06 g	0
Serine	0.03 g	0
Alcohol, ethyl	0 g	0
Caffeine	0 mg	0
Theobromine	0 mg	0

Why there is only one energy value here

USDA publishes three different energy nutrients (IDs 1008, 2047, 2048) plus a kilojoule value. This page uses 1008 — Energy — falling back to the others only when it is absent. Sites that mix them can report different calorie counts for the same food.

Published portion sizes

These are the measured weights this site uses for conversion.

Portion	Grams	Energy
1 (cup sections, with juice)	230	76
0.5 (fruit (3-3/4" dia))	118	39

Portions without a measured weight are listed but cannot be converted — we do not guess a weight for them.

Allergens: do not rely on this page

This dataset has no structured allergen field, and reference values describe a generic food — not the product you are holding. Always read the actual label before eating anything.

If you have a food allergy, treat this page as background information only.

Similar foods

Fruits and Fruit Juices

Source: U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov. (SR Legacy, release 2018-04-01) — https://fdc.nal.usda.gov/ · Data last updated 2026-09-27