Table 2.

Components of dietary patterns

	Mediterranean Diet	Healthy Eating Index	Fertility Diet	profertility diet	rice and miso	vegetable and seafood	‘Western’ Diet	preconception diet	health conscious
Dietary factor		(aHEI2010)
Seafood	+			+		+	–	+	+
Legumes	+	+							+
Fruit	+ k	+		+/−i				+	+
Vegetables	+	+	+	+/−i		+		+	+
Potatoes	+b
Dairy	-e		+/−h	+
Cereal	+c	+		+j				+j	+j
Fats	+l	+	+				+n	+
Soy				+		+
Vitamins			+	+
Nuts	+d	+
Meat	-f	–	–	–			+m	+	–
Poultry	-g					+	+
Rice/miso					+
Alcohol	+a	+

+ Indicates dietary component is used to calculate the total dietary score and contributes to a higher score

- indicates dietary component is used to calculate the total dietary score and contributes to a lower score

^a Sun 2019 [52] did not include alcohol

^b Sun 2019 [52] and Vujkovic 2010 [54] did not include potatoes

^c Gaskins 2019 [48], Karayiannis 2018 [49] and Sun 2019 [52] specified unrefined or whole grain; Vujkovic 2010 [54] did not include cereal

^d Sun 2019 [52] included nuts

^e Gaskins 2019 [48] and Karayiannis 2018 [49] specified full fat dairy; Vujkovic 2010 [54] did not include dairy

^f Vujkovic 2010 [54] did not included meat, Gaskins 2019 [48] specified red meat

^g Ricci 2019 [50], Sun 2019 [52], and Vujkovic 2010 [54] did not include or specify poultry

^h high fat dairy contributed positively, and low-fat dairy contributed negatively

^I low pesticide fruits and vegetables contributed positively, and high pesticide fruits and vegetables contributed negatively low pesticide fruits and vegetables contributed positively and high pesticide fruits and vegetables contributed negatively

^j only whole grain cereal

^k Vujkovic 2010 [54] did not include fruits

^l Vujkovic 2010 [54] specified vegetable oil, Ricci 2019 [50] high monounsaturated/saturate fatty acid ratio, Gaskins 2019 [48] and Karayiannis 2018 [49] specified olive oil

^m Sugawa 2018 [51] specified red meat

ⁿ Sugawa 2018 [51] specified oils