About this page: Data is drawn from Nutriofia's structured database of published sources (CoFID, USDA, and published analytical literature). The coverage bar shows what percentage of our 1136 foods have been measured for Proline. This is a research tool — nothing here constitutes medical advice.

About Proline

A non-essential amino acid important for collagen structure and connective tissue; often discussed alongside glycine for collagen formation.

⚠️ Too little

Isolated deficiency is uncommon with adequate dietary protein; issues are more likely in severe undernutrition or certain medical conditions.

🚫 Too much

Excess from food is generally handled by normal metabolism; high-dose single-amino-acid supplements may cause side effects or be inappropriate for some conditions.

Sources: WHO/FAO/UNU · NHS (patient leaflet)
⚠️ Partial database coverage (15.8%)
Only 180 of 1136 foods in the database have a recorded value for Proline. The ranked list below shows what we have — foods not in the list simply haven't been measured yet rather than containing none.

Foods Containing Proline

180 foods with recorded data, ranked highest first. Showing 101–180 of 180. Values per 100g fresh weight.

# Food Per 100g Level
★ Barley (Pearled) 0.545 g
★ Yoghurt, low fat, plain 0.524 g
★ Bread, white, sliced 0.495 g
4 Rice (White, Basmati) 0.49 g
5 Polenta (Dry) 0.468 g
6 Cornmeal (Maize) 0.468 g
7 Pecans (raw) 0.46 g
8 Rice (Brown, Long Grain) 0.413 g
9 Rice (Brown, Short Grain) 0.407 g
10 Macadamia nuts (raw) 0.395 g
11 Mustard, prepared, yellow 0.393 g
12 Rice (White, Long Grain) 0.391 g
13 Rice (White, Jasmine) 0.385 g
14 Chickpeas (Cooked, Drained) 0.378 g
15 Milk, skimmed, pasteurised 0.36 g
16 Milk, semi-skimmed, pasteurised 0.35 g
17 Cannellini Beans 0.342 g
18 Milk, whole, pasteurised 0.34 g
19 Marrowfat Peas (Dry) 0.311 g
20 Peas, frozen, boiled 0.27 g
21 Cheese, cream 0.265 g
22 Juniper “seeds” 0.25 g
23 Garden Peas 0.225 g
24 Garlic, raw 0.191 g
25 Broccoli 0.132 g
26 Soy milk, sweetened, plain, refrigerated 0.114 g
27 Cream, double 0.11 g
28 Sweetcorn, frozen, boiled 0.102 g
29 Chestnuts, roasted (no added fat/salt) 0.1 g
30 Mushrooms, closed cup, raw 0.093 g
31 Spinach, baby, raw 0.078 g
32 Green Beans 0.057 g
33 Cauliflower, raw 0.057 g
34 Potatoes, boiled (unsalted) 0.057 g
35 Pomegranate seeds (arils) 0.045 g
36 Kiwifruit, green, raw 0.04 g
37 Courgette, raw 0.036 g
38 Cabbage, white, raw 0.036 g
39 Cherries, flesh and skin, raw 0.036 g
40 Bananas, raw, flesh only 0.036 g
41 Lettuce, average, raw 0.036 g
42 Carrots, frozen, unprepared 0.034 g
43 Tomatoes, cherry, raw 0.033 g
44 Onions, raw 0.033 g
45 Peaches, raw, flesh and skin 0.03 g
46 Aubergine, raw 0.03 g
47 Nectarines, flesh and skin, raw 0.03 g
48 Apricots, raw, flesh and skin 0.027 g
49 Grapefruit, flesh only, raw 0.027 g
50 Blueberries, raw 0.027 g
51 Blueberries 0.027 g
52 Tomato 0.027 g
53 Satsuma 0.024 g
54 Clementine 0.024 g
55 Tangerine 0.024 g
56 Oranges, flesh only 0.024 g
57 Lemons, whole, without pips 0.024 g
58 Kiwi fruit, flesh only, raw 0.024 g
59 Pineapple, raw 0.021 g
60 Mangoes, ripe, flesh only, raw 0.021 g
61 Celery, raw 0.021 g
62 Limes, flesh only 0.021 g
63 Melon, Honeydew, flesh only, weighed whole 0.021 g
64 Strawberries, raw 0.018 g
65 Butter, salted 0.018 g
66 Plums, Victoria, flesh and skin, raw 0.018 g
67 Cucumber 0.018 g
68 Apples, eating, raw (flesh + skin) 0.018 g
69 Peaches, yellow, raw 0.017 g
70 Pears, raw, bartlett 0.017 g
71 Pineapple, flesh only, raw 0.015 g
72 Blackberries, raw 0.015 g
73 Melon, Galia, flesh only 0.015 g
74 Pears, raw, flesh and skin 0.009 g
75 Nectarines, raw 0.009 g
76 Grapes, green 0.006 g
77 Grapes, red 0.006 g
78 Pears, raw 0.006 g
79 Grapes, raw 0.006 g
80 Raspberries, raw 0.003 g

* Values are per 100g fresh weight. % NRV = percentage of EU Nutrient Reference Value. Bar shows relative level compared to the highest value across all foods in the database.

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Data sources: Standard nutrients: McCance & Widdowson's Composition of Foods Integrated Dataset (CoFID), Public Health England. EU Nutrient Reference Values: Regulation (EU) No 1169/2011 (Annex XIII). All values per 100g fresh weight unless stated. Nothing here constitutes medical advice. Nutriofia database · Argarth Collective Ltd · Company No. 16864945.