Walnuts, in shell Production by Country 2025
Walnuts dominate tree nut nutrition with China leading at 1.4 million tonnes in 2023, projected to reach 1.3 million tonnes by 2025. Global production totaled 4.0 million tonnes in 2023, up 2.2% from 2022, spanning 55 countries concentrated in temperate regions. USA produces 748,000 tonnes, Iran contributes 381,000 tonnes, and Turkey adds 360,000 tonnes. These brain-shaped nuts, richest plant source of omega-3 fatty acids, provide heart-healthy fats and antioxidants. Walnuts serve primarily shelled consumption (snacking, baking, salads) with limited in-shell sales, commanding $4-8/kg wholesale due to health benefits driving demand despite labor-intensive harvesting and processing requiring mechanical shakers and hulling equipment.
China produces 1.4 million tonnes in 2023, surging from 850,000 in 2018, concentrated in Yunnan, Xinjiang, and Sichuan provinces where temperate climate suits cultivation. Chinese walnuts, primarily thin-shelled varieties, serve massive domestic consumption (95%+) with limited exports. Production explosion reflects rising middle-class demand for healthy snacks and traditional medicine uses. However, China faces challenges from walnut blight disease, codling moth, and quality inconsistency. USA contributes 748,000 tonnes, concentrated in California (99% of US production) where Central Valley's Mediterranean climate enables mechanized cultivation. American walnuts, primarily Chandler and Howard varieties, dominate global exports (70%+ of production) to Europe, Asia, and Middle East, commanding premium prices for consistent quality and food safety standards. Iran produces 381,000 tonnes, Turkey 360,000 tonnes, and Chile 192,000 tonnes. Mexico contributes 168,000 tonnes, Burkina Faso 145,000 tonnes (surprising African producer), and Ukraine 106,000 tonnes. Romania produces 58,000 tonnes, Uzbekistan 48,000 tonnes, and Greece 40,000 tonnes. France contributes 31,000 tonnes, Afghanistan 27,000 tonnes, and Egypt 24,000 tonnes. These producers balance domestic consumption with export opportunities. Walnut cultivation suits temperate climates with cold winters (chill hours 400-1,500) and hot, dry summers. Trees live 100+ years, producing nuts 4-7 years after planting. The nut's high value ($4-8/kg) and health benefits drive continued expansion despite water requirements and long maturation period. Walnuts provide exceptional nutrition—omega-3 ALA (2.5g/28g serving, highest among nuts), antioxidants, protein (4g), and healthy fats (18g) at 185 calories per 28g. Brain-shaped appearance led to historical belief they improve brain function—modern science confirms cognitive benefits from omega-3s! Culinary uses span snacking (raw or roasted), baking (brownies, cookies), salads (Waldorf salad), and cooking (walnut pesto, baklava). Processing creates walnut oil (gourmet cooking), walnut butter, and flour. Black walnuts (different species, Juglans nigra) offer stronger flavor but harder shells. English/Persian walnuts (Juglans regia) dominate commercial production. Organic walnuts fetch 30-50% premiums. The nut's bitter skin (tannins) can be removed by blanching, though skin contains beneficial antioxidants. Walnut trees thrive in temperate climates with cold winters (400-1,500 chill hours) and hot, dry summers. Trees grow 15-25m tall, living 100-200 years. First harvest occurs 4-7 years after planting, reaching full production at 15-20 years. Harvest occurs September-November when hulls split. Mechanical shakers vibrate trees, dropping nuts onto catching frames. Hulling machines remove green outer hull, revealing familiar tan shell. Drying reduces moisture to 8% for storage. Shelling (cracking) done mechanically or manually. Major diseases include walnut blight, crown rot, and anthracnose. Pests include codling moth, walnut husk fly, and aphids. Climate change brings irregular chill hours and increased pest pressure. Breeding programs develop disease-resistant, high-yielding varieties with thin shells for easier cracking. Walnut prices fluctuate $4-8/kg in-shell, $8-15/kg shelled, depending on quality and market. Global walnut trade worth $5-7 billion annually, dominated by USA exports. California ships 70%+ of production to Europe (Germany, Spain, Turkey for processing), Asia (Japan, South Korea, China), and Middle East. Health benefits drive demand—omega-3s, antioxidants, and heart health studies boost consumption. Retail trends favor shelled, ready-to-eat walnuts despite 100%+ price premiums over in-shell. Organic walnuts grow rapidly. Climate change affects bloom timing and frost risk. Water scarcity threatens California production (walnuts require significant irrigation). Competition from other tree nuts (almonds, pecans) challenges markets. However, walnut's unique omega-3 profile maintains premium positioning. Global walnut production projected to grow 3-4% annually through 2030, driven by health consciousness and omega-3 awareness. Climate-adapted varieties help cope with irregular chill hours. Mechanical harvesting and processing improve efficiency. Value-added products—walnut oil, butter, flour, and snacks—create opportunities. However, walnuts face challenges from water requirements, long maturation period, and climate change affecting chill hours. The nut's exceptional omega-3 content, brain health benefits, and culinary versatility ensure continued demand growth, though production will likely concentrate in regions with suitable climate and water availability in this ancient nut's modern role as premium superfood commanding prices justified by unmatched nutritional profile among plant-based omega-3 sources.🏆 China's Domestic Dominance
Walnuts, in shell Production by Country 2025
1
1,340,000
2
712,865
3
374,036
4
345,500
5
180,700
6
164,352
7
138,650
8
108,442
9
55,915
10
51,526
11
48,384
12
38,142
13
24,040
14
24,017
15
19,856
16
18,723
17
18,517
18
17,423
19
16,973
20
16,953
21
14,693
22
13,893
23
13,408
24
12,649
25
10,030
26
9,862
27
9,520
28
8,247
29
7,680
30
6,678
31
6,251
32
5,875
33
4,877
34
4,602
35
3,890
36
3,883
37
3,426
38
3,272
39
3,001
40
1,993
41
1,463
42
1,156
43
866
44
721
45
715
46
635
47
400
48
240
49
171
50
147
51
139
52
132
53
132
54
28
55
8
🌍 Global Production
🧠 Brain-Healthy Superfood
🌳 Long-Lived Cultivation
📊 Premium Export Markets
🔮 Health-Driven Growth
Walnuts, in shell Production by Country 2025
#
1
850,000
1,000,000
1,100,000
1,100,000
1,400,000
1,400,000
1,340,000
2
615,980
594,206
716,680
666,780
685,830
747,520
712,865
3
304,040
321,074
363,280
385,125
355,040
380,999
374,036
4
215,000
225,000
286,706
325,000
335,000
360,000
345,500
5
152,000
125,000
140,400
161,000
175,000
192,000
180,700
6
159,535
171,368
164,652
135,947
177,582
167,777
164,352
7
127,000
128,000
128,000
128,000
134,938
145,136
138,650
8
127,190
125,850
113,320
115,420
107,660
106,120
108,442
9
54,000
49,580
48,350
54,250
53,400
58,090
55,915
10
31,860
31,040
36,400
65,950
61,820
39,580
51,526
11
50,189
47,558
48,299
48,682
48,180
48,387
48,384
12
37,690
34,950
38,060
37,740
49,680
31,380
38,142
13
10,804
14,690
14,877
23,360
19,560
27,000
24,040
14
23,770
23,718
23,825
23,998
24,013
24,027
24,017
15
18,247
17,706
14,669
19,125
19,120
20,590
19,856
16
6,301
3,409
4,664
4,340
20,592
23,354
18,723
17
18,412
18,625
18,483
18,507
18,538
18,509
18,517
18
15,180
17,540
17,110
18,880
16,590
17,340
17,423
19
12,450
10,800
15,490
14,660
21,870
14,960
16,973
20
16,480
17,301
16,887
16,889
17,026
16,934
16,953
21
14,862
14,510
15,121
15,235
15,026
14,277
14,693
22
11,745
11,581
12,638
13,136
13,646
14,344
13,893
23
12,467
9,880
11,996
25,065
12,736
9,149
13,408
24
12,130
10,569
11,072
11,991
13,310
12,515
12,649
25
9,772
8,836
8,455
7,646
11,836
9,900
10,030
26
8,213
8,934
10,051
9,054
10,237
9,960
9,862
27
8,480
5,240
7,000
6,800
10,700
9,900
9,520
28
4,750
6,160
5,110
7,540
7,130
9,200
8,247
29
5,700
6,600
7,500
7,200
8,800
7,200
7,680
30
7,204
5,091
4,182
6,215
6,127
7,194
6,678
31
6,387
6,175
6,254
6,272
6,234
6,253
6,251
32
5,770
6,820
5,460
5,950
6,450
5,500
5,875
33
4,826
5,014
5,387
4,667
6,165
4,189
4,877
34
3,710
4,497
4,986
4,397
4,626
4,670
4,602
35
3,298
3,433
4,959
4,037
3,649
3,977
3,890
36
5,120
4,840
4,750
4,730
4,040
3,450
3,883
37
3,214
3,530
3,780
3,508
3,378
3,422
3,426
38
5,940
3,090
2,990
2,750
4,940
2,480
3,272
39
3,089
3,814
2,817
3,167
3,093
2,880
3,001
40
2,451
2,370
2,218
1,997
1,943
2,021
1,993
41
1,478
1,437
1,474
1,463
1,458
1,465
1,463
42
1,177
1,157
1,149
1,154
1,155
1,159
1,156
43
740
580
1,000
590
1,260
740
866
44
725
726
721
719
721
722
721
45
202
350
493
1,012
796
548
715
46
840
700
700
700
619
619
635
47
400
200
380
170
920
180
400
48
299
321
283
258
244
230
240
49
120
140
150
160
180
170
171
50
0
0
0
140
130
160
147
51
223
256
219
179
129
129
139
52
30
20
10
0
140
180
132
53
150
110
100
180
120
120
132
54
30
30
30
20
30
30
28
55
0
7
8
9
7
8
8
Frequently Asked Questions
Which country produces the most walnuts in the world?
China is the world's largest walnut producer with 1,400,000 tonnes in 2023, surging from 850,000 in 2018. Production concentrates in Yunnan, Xinjiang, and Sichuan provinces. Chinese walnuts serve massive domestic consumption (95%+) with limited exports. USA ranks second with 747,520 tonnes (99% from California), followed by Iran at 380,999 tonnes and Turkey at 360,000 tonnes. USA dominates global exports (70%+ of production) despite lower production than China.
Why are walnuts shaped like brains and do they really help brain function?
Walnuts' brain-like appearance (wrinkled, two-lobed) led ancient physicians to believe they improved brain function through "doctrine of signatures" (foods resembling body parts treat those parts). Remarkably, modern science confirms cognitive benefits! Walnuts provide highest plant-based omega-3 ALA (2.5g per 28g serving) which supports brain health, memory, and cognitive function. Studies show regular walnut consumption improves brain function, reduces cognitive decline, and supports mental health. The brain-shape coincidence is just that—coincidence—but the brain benefits are real! Walnuts also provide antioxidants protecting brain cells from oxidative stress. So yes, these brain-shaped nuts genuinely help your brain—ancient intuition meets modern science!
Data Disclaimer: Projected data (future years) are estimates based on mathematical models. Actual values may differ. Learn about our methodology →
Sources
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Updated: 13.11.2025https://www.fao.org/faostat/en/#data/QCL
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