Literature on the association between nutrients and dietary patterns on male fertility

NutrientSpeciesStudiesDose and durationConclusionsReferences
Dietary pattern
Mediterranean dietHumanCross-sectional study2 monthsA healthy dietary pattern improved the semen quality, reproductive hormone level, and testicular volume of men.[50]
Antioxidant nutrientCase-control study2 yearsThe finding showed that adherence to antioxidant nutrients was inversely associated with asthenozoospermia.[51]
Healthy dietCross-sectional study3 yearsThe healthy diet intake improved the semen quality parameters.[52]
Proteins
Soy productHumanProspective cohort study2004–2014Soy food intake was not linked with the clinical outcome of infertility.[53]
Dietary fats
Omega-3 fatty acidHumanCross-sectional study1 yearTrans fatty acids (TFA) are related to reduced fertility, whereas the omega-3 fatty acid was found protective against testicular volume.[54]
Nut consumptionRandomized control trial14 weeksThe inclusion of nuts significantly improved the total sperm count and vitality, motility, and sperm morphology.[55]
Carbohydrate
Low glycaemic foodHumanCross-sectional study2008–2013The low glycaemic food might have a positive impact on total sperm motility, progressive motility, and normal sperm morphology.[56]
Antioxidants
LycopeneHumanRandomized control trial25 mg/day for 12 weeksThe lycopene supplement improved the spermatogram and seminal oxidative stress.[57]
10 mg twice a day for 12 weeksLycopene helped to decrease the soluble receptor for advanced glycation end products (sRAGE).[58]
Vitamin CHumanRandomized control trial1 gm/day for 2 monthsVitamin C supplementation improved semen agglutination and increased viability.[59]
1 gm every other day for 6 monthsThe supplementation of vitamin C improved sperm concentration and motility.[60]
Vitamin EAlbino Wistar ratsRandomized control trial500 mg/kg body weight, 3 times a week for 2 weeksThe testicular damage caused by the aluminum was diminished when supplemented with vitamin E.[61]
HumanClinical trial200 mg/day for three monthsSupplementation of vitamin E decreased malondialdehyde levels and increased fertilization rates.[62]