QUICK ANSWER
How many calories are in raw pecan halves?
Using the source's Atwater General value, raw pecan halves provide 750 kcal per 100 g. Scale from the edible portion and keep other states separate.
750 kcal / 100 gNutrition values describe a reference food state, not every individual item. Variety, water content, preparation and portion weight can change the estimate.
THE NUMBERS
Raw pecan halves nutrition facts per 100 g
The values below use the reference state shown at the top of this page. Keeping one gram basis makes it easier to compare foods before translating the values to the portion you actually ate.
- Calories
- 750 kcal
- Protein
- 9.96 g
- Carbohydrate
- 12.7 g
- Fat
- 73.3 g
- Fibre
- 5.79 g
- Manganese
- 2.28 mg
- Magnesium
- 103 mg
- Zinc
- 3.93 mg
Source: USDA FoodData Central Foundation record 2346395. Values may be rounded for readability.
SERVING SIZE
Calories by portion and serving weight
Words such as “small,” “medium,” “half” and “one piece” are convenient but imprecise. Grams make the estimate reproducible, particularly when natural foods vary in size.
MACROS
Carbohydrate, protein and fat explained
Protein
9.96 g per 100 g. From Nuts, pecans, halves, raw.
Carbohydrate
12.7 g per 100 g. From Nuts, pecans, halves, raw.
Fat
73.3 g per 100 g. From Nuts, pecans, halves, raw.
MORE THAN CALORIES
Fibre, vitamins and minerals
One food does not need to provide every nutrient. These are the characteristics most useful for understanding where raw pecan halves fits in a varied eating pattern.
Manganese
2.28 mg per 100 g in the selected USDA record.
Magnesium
103 mg per 100 g in the selected USDA record.
Zinc
3.93 mg per 100 g in the selected USDA record.
Potassium
360 mg per 100 g in the selected USDA record.
FOOD STATE MATTERS
How preparation changes the nutrition estimate
A reliable calorie entry should describe the food you actually ate—not merely a food with a similar name.
Raw halves
Selected reference.
Roasted
Use the matching roasted record and salt state.
Glazed or candied
Use the product label and include coating.
Pecan pie
Log the complete recipe and slice weight.
PRACTICAL CONTEXT
How raw pecan halves can fit different goals
There is no universal “good” or “bad” food. Portion, frequency, the rest of the meal, preferences and individual health needs all matter.
Portion math
At 750 kcal per 100 g, the 15 g example is 112.5 kcal.
Fibre check
The selected record lists 5.79 g fibre per 100 g.
Protein check
The selected record lists 9.96 g protein per 100 g.
Best logging move
Weigh the nuts and keep roasting oil, salt, glaze and recipe ingredients separate.
QUALITY & SAFETY
How to choose, store and prepare it
Store
Keep pecans sealed away from heat, light and moisture.
After opening or cutting
Use a clean, dry utensil for shared containers.
Prepare
Follow package tree-nut allergen guidance.
Safety boundary
Discard mouldy or unmistakably rancid nuts; the nutrient record does not establish storage duration.
PHOTO LOGGING
How to log raw pecan halves more accurately
A food photo can suggest the ingredient, but it cannot always reveal exact weight, hidden oil or preparation details. These checks turn an image guess into a better estimate.
- 01
Match the exact reference state: Nuts, pecans, halves, raw.
- 02
Use edible grams. Calories are scaled from the selected per-100-g record; named portion weights come from the same local USDA record, while explicitly labelled gram examples are calculated.
- 03
Log oil, sauce, sweetener, salt and recipe ingredients separately.
- 04
Use a separate record when preparation changes the food state.
COMMON QUESTIONS
Raw pecan halves calorie and nutrition questions
How many calories are in 100 g of pecans?
750 kcal in the selected Nuts, pecans, halves, raw record.
How much fibre is in pecans?
5.79 g per 100 g in the selected record.
Which pecans state does this page use?
Nuts, pecans, halves, raw. Preparation and edible state are part of the answer.
Why can pecan calorie values differ?
This source lists 750 kcal per 100 g by Atwater General factors and 700 kcal by Atwater Specific factors. This page uses 750 consistently for portion math.
How are the portion calories calculated?
Each portion is scaled from 750 kcal per 100 g. Named weights come from the selected source record; calculated gram examples are labelled.
KEEP EXPLORING
Related food guides
SOURCES & METHOD
Where these numbers come from
Nuts, pecans, halves, raw, per 100 g edible portion. Numeric nutrition claims use the nutrition-reviewed local USDA record. Named portion claims use source-held weights; explicitly labelled gram examples are calculations from the per-100-g record. The nutrient record does not establish storage duration, clinical advice or food-safety limits; use package directions and current authoritative guidance where relevant.
Open USDA FoodData Central Foundation record 2346395 ↗Page reviewed 26 August 2026. We show the food state, gram basis and source record so readers can check the estimate instead of treating one number as universally exact.