Table 1: Color density index (CDI) chart.

#Plant foodRed
(lycopene)
Orange
(beta-carotene)
Yellow
(lutein/zeaxanthin)
Green
(folates)
Purple
(flavonoids)

1Acorn squashXXXN/A
2AlmondsXXXX
3AmaranthXXXN/A
4ApricotsXXXX
5ArtichokesXXXX
6ArugulaXXXX
7AsparagusXXXX
8Avocado (all commercial varieties)XXXX
9BananasXXXX
10Basil (dried)XXXX
11BeetsXXX
12Black beansXX
13BlackberriesXXXX
14BlueberriesXXXX
15BroccoliXXXX
16Brussels sproutsXXXX
17Butternut squashXXN/A
18CabbageXXXX
19CantaloupeXXXX
20CarrotsXXXXX
21Casaba melonXXN/A
22CashewsXXX
23CauliflowerXXX
24CeleryXXXX
25Chinese cabbage (pak choi)XXXX
26Chinese cabbage (pe-tsai)XXXX
27ChivesXXXX
28Cilantro (coriander)XXXX
29CranberriesXXXX
30CucumbersXXXX
31EggplantXXXX
32EndiveXXX
33FeijoaXXXXN/A
34FennelXXXX
35FigsXXXX
36FlaxseedXXN/A
37Fuji applesXXXX
38Gala applesXXXX
39GarlicXXXX
40Golden delicious applesXXXX
41Granny smith applesXXXX
42GrapefruitXXXXX
43Green and red grapesXXX (especially green)X
44Green hot chili peppersXXXX
45Green peasXXXX
46Green peppersXXXX
47Green snap beansXXXX
48GuavaXXXX
49HazelnutsXXXX
50Honeydew melonXXXX
51Iceberg lettuceXXXX
52Jalapeño peppersXXXX
53JicamaXXN/A
54KaleXXXX
55KiwiXXXX
56KohlrabiXXX
57LeeksXXXX
58LentilsXXX
59MangoXXXXX
60Medjool datesXXXX (deglet noor)
61Millet (cooked)XXXN/A
62NectarinesXXXX
63OkraXXXX
64OnionXXXX
65Oranges (all commercial varieties)XXXX
66Oregano (dried)XXXX
67PapayasXXXXX
68ParsleyXXXX
69PearXXXX
70PecansXXXX
71Pine nuts (dried)XXXX
72PineappleXXX
73PistachiosXXXX
74PlumsXXXX
75PumpkinXXXX
76Pumpkin seeds (dried)XXXN/A
77QuinoaXXXN/A
78RadishesXXXX
79RaspberriesXXXX
80Red cabbageXXXXX
81Red delicious applesXXXX
82Red hot chili peppersXXXN/A
83Red lentilsN/AXN/AXN/A
84Red peppersXXXX
85Red potatoesXXXX
86Romaine lettuceXXXX
87Russet (white) potatoesXXX
88RutabagasXXXXX
89Savoy cabbageXXXX
90ScallionsXXXX
91Sea vegetables (kelp)XXN/A
92Serrano peppersXXXX
93Sesame seeds (dried)XXN/A
94ShallotsXXXN/A
95Snap peasXXXN/A
96Sour red cherriesXXXX
97Soybeans, mature seedsXXX
98Spaghetti squashXXN/A
99SpinachXXXX
100SpirulinaXXN/A
101StrawberriesXXXX
102Summer squashXXXX
103Sunflower seeds (dried)XXN/A
104Sweet cherriesXXXX
105Sweet potato, rawXXX
106Swiss chardXXXX
107TangerinesXXXX
108TomatoesXXXXX
109Walnuts (English)XXXX
110WatercressXXXX
111WatermelonXXXXX
112Yellow peachesXXXX
113Yellow peppersN/AXN/AXX
114Yellow plantainXXXN/A
115ZucchiniXXXX

The table is in the alphabetical order and contains many of the commonly consumed vegetables, fruits, grains, legumes, and spices. One or two main phytonutrients were used to represent the colors: lycopene for red, beta-carotene for orange, lutein and zeaxanthin for yellow, folate for green, and flavonoids for purple. The majority of information comes from the USDA National Nutrient Database [29], with some of the flavonoid information derived from the USDA Database for Flavonoid Content of Selected Foods 3.1 [47]. The latter database is not as extensive as the former, so some of the foods on this table were not included in that database. These foods have an “N/A” listed under the “purple” column. There were also a few foods for which the USDA National Nutritional Database did not list the lycopene, beta-carotene, lutein, and/or zeaxanthin content, which corresponds to an N/A listed for those foods. Finally, the table only designates that there is some quantity of these phytonutrients but does not designate which are highest in the color nor which of the colors is more dominant for the particular color. Unless designated, the results are for the raw version of the foods.