| Food | Country | Total population | Adults | Elders | References |
| Fish and seafood | Italy | 4.12 | 3.90–4.62 | 4.01–3.27 | This study | Austria | — | 0.60–0.83 | — | Mihats et al., [34] | France | — | 1.73 | — | Sirot et al., [30] | Greece | 2.02–4.03 | — | — | Stagakis et al., [40] |
| Fish | Italy | 3.06 | 2.90–3.43 | 2.43–2.98 | This study | Greece | 2.15–3.38 | — | — | Renieri et al., [39] |
| Meat and meat products | Italy | 2.91 | 2.81–3.29 | 2.10–2.47 | This study | France | — | 0.28 | — | Sirot et al., [30] |
| Meat | Italy | 5.51 | — | — | Barone et al., [13] |
| Chicken meat | Poland | 17.7 | — | — | Rusin et al., [41] | Poland | 2.1 | — | — | Rusin et al., [41] |
| Milk and dairy products | Italy | 3.18 | 3.15–3.43 | 2.85–3.09 | This study | Austria | — | 1.34–1.74 | — | Mihats et al., [34] | France | — | 0.35 | — | Sirot et al., [30] | Cow milk | Poland | 2.1 | — | — | Rusin et al., [41] | Poland | 1.1 | — | — | Rusin et al., [41] |
| Hen eggs | Italy | 0.74 | 0.74–0.77 | 0.71–0.73 | This study | Italy | 0.07–0.36 | — | — | Castellani et al., [42] | Austria | — | 0.11–0.14 | — | Mihats et al., [34] | Poland | 2.7 | — | — | Rusin et al., [41] | Poland | 0.6 | — | — | Rusin et al., [41] |
| Olive oil and fats | Italy | 0.48 | 0.51 | 0.43 | This study | France | — | 0.23 | — | Sirot et al., [30] |
| Total diet study | Italy | 11.43 | 11.63–12.11 | 9.60–10.50 | This study | Italy | — | 10.9 | — | Fattore et al., [14] | Austria | — | 2.6–3.2 | — | Mihats et al., [34] | Belgium | 5.33 | — | — | Cimenci et al., [33] | France | — | 2.78 | — | Sirot et al., [30] | France | — | 7.7 | — | Arnich et al., [35] | Germany | — | 5.6 | — | Fromme et al., [36] | Denmark | — | 12.6 | — | Fromberg et al., [37] | Norway | 5.2 | — | — | Kvalem et al., [38] | Europe | 4.3–25.7 | — | — | EFSA, [22, 43] |
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