Exploratory data analyses

Summaries of interventions and classes.

Summary of classes

Number of studies and participants for each class
	class	studies	participants
count
	amino acids	10	1224
	antioxidants	3	173
	coenzymes	4	505
	dietary supplements	6	403
	minerals	11	2739
	omega-3 fatty acids	9	808
	other	3	529
	seed oils	1	68
	vitamin/mineral combos	4	500
	vitamins	11	684
total	—	62	7,633
maximum	—	11	2,739
morphology
	amino acids	10	1165
	antioxidants	3	172
	coenzymes	4	505
	dietary supplements	3	181
	minerals	7	2453
	omega-3 fatty acids	8	806
	other	2	335
	seed oils	1	68
	vitamin/mineral combos	4	488
	vitamins	10	639
total	—	52	6,812
maximum	—	10	2,453
motility
	amino acids	11	1173
	antioxidants	3	179
	coenzymes	4	505
	dietary supplements	6	403
	minerals	10	2700
	omega-3 fatty acids	10	877
	other	3	529
	seed oils	1	68
	vitamin/mineral combos	4	491
	vitamins	12	770
total	—	64	7,695
maximum	—	12	2,700
volume
	amino acids	6	509
	antioxidants	2	130
	coenzymes	3	450
	dietary supplements	2	137
	minerals	4	2244
	omega-3 fatty acids	8	739
	other	2	454
	seed oils	1	68
	vitamin/mineral combos	2	357
	vitamins	5	316
total	—	35	5,404
maximum	—	8	2,244

Summary of interventions

Number of studies and participants for each intervention
	intervention	studies	participants
count
amino acids	l-carnitine/l-acetylcarnitine	8	759
amino acids	l-carnitine+cinnoxicam	1	174
amino acids	l-carnitine+l-carnitine fumarate+ala	1	80
amino acids	n-acetyl cysteine	1	211
antioxidants	antioxidants	3	173
coenzymes	coenzyme q10	4	505
dietary supplements	carob	1	57
dietary supplements	coenzyme-q10 + l-carnitine + lycopene + zinc high dose	1	64
dietary supplements	coenzyme-q10 + l-carnitine + lycopene + zinc low dose	1	61
dietary supplements	herb/mineral supplement	1	44
dietary supplements	micronutrient supplement	1	87
dietary supplements	prelox	1	50
dietary supplements	spirulina	1	40
minerals	magnesium	1	20
minerals	minerals	1	97
minerals	selenium supplements	2	503
minerals	zinc/zinc + folic acid	7	2119
omega-3 fatty acids	omega-3 fatty acids	8	631
omega-3 fatty acids	omega-3s + vitamins	2	177
other	myoinositol	1	194
other	saffron	1	260
other	walnuts	1	75
seed oils	nigella sativa seed oil	1	68
vitamin/mineral combos	vitamin d3 + calcium	1	269
vitamin/mineral combos	vitamin/mineral supplements	3	231
vitamins	folic acid	4	191
vitamins	vitamin c/e	5	345
vitamins	vitamin d3	2	148
total	—	65	7,633
maximum	—	8	2,119
morphology
amino acids	l-carnitine/l-acetylcarnitine	9	780
amino acids	l-carnitine+cinnoxicam	1	174
amino acids	n-acetyl cysteine	1	211
antioxidants	antioxidants	3	172
coenzymes	coenzyme q10	4	505
dietary supplements	herb/mineral supplement	1	44
dietary supplements	micronutrient supplement	1	87
dietary supplements	prelox	1	50
minerals	magnesium	1	20
minerals	selenium supplements	1	421
minerals	zinc/zinc + folic acid	5	2012
omega-3 fatty acids	omega-3 fatty acids	8	806
other	saffron	1	260
other	walnuts	1	75
seed oils	nigella sativa seed oil	1	68
vitamin/mineral combos	vitamin d3 + calcium	1	257
vitamin/mineral combos	vitamin/mineral combos	1	60
vitamin/mineral combos	vitamin/mineral supplements	2	171
vitamins	folic acid	4	191
vitamins	vitamin c/e	4	300
vitamins	vitamin d3	2	148
total	—	53	6,812
maximum	—	9	2,012
motility
amino acids	l-carnitine/l-acetylcarnitine	10	788
amino acids	l-carnitine+cinnoxicam	1	174
amino acids	n-acetyl cysteine	1	211
antioxidants	antioxidants	3	179
coenzymes	coenzyme q10	4	505
dietary supplements	carob	1	57
dietary supplements	coenzyme-q10 + l-carnitine + lycopene + zinc high dose	1	125
dietary supplements	herb/mineral supplement	1	44
dietary supplements	micronutrient supplement	1	87
dietary supplements	prelox	1	50
dietary supplements	spirulina	1	40
minerals	magnesium	1	20
minerals	minerals	1	97
minerals	selenium supplements	2	503
minerals	zinc/zinc + folic acid	6	2080
omega-3 fatty acids	omega-3 fatty acids	10	877
other	myoinositol	1	194
other	saffron	1	260
other	walnuts	1	75
seed oils	nigella sativa seed oil	1	68
vitamin/mineral combos	vitamin d3 + calcium	1	260
vitamin/mineral combos	vitamin/mineral combos	1	60
vitamin/mineral combos	vitamin/mineral supplements	2	171
vitamins	folic acid	4	191
vitamins	vitamin c/e	5	345
vitamins	vitamin d3	3	234
total	—	65	7,695
maximum	—	10	2,080
volume
amino acids	l-carnitine/l-acetylcarnitine	5	298
amino acids	n-acetyl cysteine	1	211
antioxidants	antioxidants	2	130
coenzymes	coenzyme q10	3	450
dietary supplements	micronutrient supplement	1	87
dietary supplements	prelox	1	50
minerals	minerals	1	97
minerals	selenium supplements	1	421
minerals	zinc/zinc + folic acid	2	1726
omega-3 fatty acids	omega-3 fatty acids	8	739
other	myoinositol	1	194
other	saffron	1	260
seed oils	nigella sativa seed oil	1	68
vitamin/mineral combos	vitamin d3 + calcium	1	269
vitamin/mineral combos	vitamin/mineral supplements	1	88
vitamins	folic acid	1	47
vitamins	vitamin c/e	2	121
vitamins	vitamin d3	2	148
total	—	35	5,404
maximum	—	8	1,726