Foods high in Energy (Atwater Specific Factors)

Every food and ingredient below is ranked by measured Energy (Atwater Specific Factors) content per 100 g, drawn live from 223 USDA FoodData Central measurements. Values are laboratory-analysed or survey-derived, not estimated.

Top 25 foods highest in Energy (Atwater Specific Factors)

Ranked by Energy (Atwater Specific Factors) per 100g, across Foundation Foods and FNDDS ingredients.

#	Food or ingredient	Source	Per 100g (KCAL)
1	Nuts, pecans, halves, raw	Foundation Food	700
2	Nuts, walnuts, English, halves, raw	Foundation Food	679
3	Nuts, macadamia nuts, raw	Foundation Food	669
4	Sesame butter, creamy	Foundation Food	648
5	Nuts, pine nuts, raw	Foundation Food	643
6	Nuts, brazilnuts, raw	Foundation Food	621
7	Almond butter, creamy	Foundation Food	603
8	Nuts, hazelnuts or filberts, raw	Foundation Food	602
9	Peanut butter, smooth style, with salt	Foundation Food	597
10	Peanut butter, creamy	Foundation Food	589
11	Nuts, almonds, whole, raw	Foundation Food	584
12	Flour, almond	Foundation Food	578
13	Seeds, sunflower seed, kernel, raw	Foundation Food	571
14	Nuts, pistachio nuts, raw	Foundation Food	561
15	Peanuts, raw	Foundation Food	551
16	Nuts, cashew nuts, raw	Foundation Food	533
17	Seeds, pumpkin seeds (pepitas), raw	Foundation Food	515
18	Flaxseed, ground	Foundation Food	514
19	Chia seeds, dry, raw	Foundation Food	490
20	Flour, coconut	Foundation Food	424
21	Cheese, parmesan, grated, refrigerated	Foundation Food	405
22	Cheese, monterey jack, solid	Foundation Food	391
23	Flour, oat, whole grain	Foundation Food	386
24	Pork, belly, with skin, raw	Foundation Food	385
25	Flour, chestnut	Foundation Food	385

Lowest in Energy (Atwater Specific Factors)

For contrast — the 10 lowest non-zero values on record, per 100g.

#	Food or ingredient	Source	Per 100g (KCAL)
214	Cucumber, with peel, raw	Foundation Food	13.9
215	Lettuce, iceberg, raw	Foundation Food	14.5
216	Almond milk, unsweetened, plain, shelf stable	Foundation Food	14.56
217	Lettuce, leaf, red, raw	Foundation Food	14.7
218	Celery, raw	Foundation Food	14.8
219	Squash, summer, green, zucchini, includes skin, raw	Foundation Food	16
220	Cabbage, bok choy, raw	Foundation Food	17
221	Lettuce, romaine, green, raw	Foundation Food	17.5
222	Lettuce, leaf, green, raw	Foundation Food	18.5
223	Tomato, roma	Foundation Food	18.95

More on Energy (Atwater Specific Factors)

What Energy (Atwater Specific Factors) is, how it is measured, and where these values come from.

Energy (Atwater Specific Factors) nutrient reference →

Sourced from USDA FoodData Central — Foundation Foods; not yet through an editorial verification pass.

USDA release 2026-04-30. All values are per 100 g unless stated otherwise.