Abstract. Research conducted in recent years provides more and more evidence that diet can have a significant impact on male fertility. The aim of the study was to analyze the relationship between diet, energy balance and fertility in men. A comprehensive literature search of published studies in various languages, was carried out in electronic databases. The direct analysis included 96 works published between 2008 and 2018, including 12 randomized controlled trials and 23 systematic reviews and meta-analyses. A strong adherence to a healthy dietary pattern is positively correlated with total sperm count, progressive motility and total motile sperm count (all p < 0.05). However, attention is drawn to the fact that foods that are considered “healthy” can sometimes contain a significant amount of pollution, which negatively affect the semen parameters. An adequate intake of antioxidants or their supplementation have been quite effective in the prevention and treatment of male infertility. The improvement of pregnancy rate after antioxidant therapy ranged in various studies from 11% to 41%. An important problem, however, may be choosing the right dose of the supplement or finding an appropriate combination of antioxidants that may be more effective than any single antioxidant. The normalization of men's body weight is beneficial for the quality of sperm and the concentration of male reproductive hormones. Further, long-term studies require the assessment of the impact of drastic weight loss after bariatric surgery on male fertility.
This new incidence off sterility certainly partners out-of reproductive age ranges, based on some present, of 8% in order to 25% [1–3]. Male sterility is the merely factor in sterility into the 20–30% of times and you can something causing sterility when you look at the 50% of all the infertility circumstances . The brand new investigations off male fertility constantly comes with medical examination and you may analysis on resource philosophy of one’s following semen parameters: regularity, complete sperm fertility, attention, motility and you will morphology (Desk step 1) . Lower sperm fertility and you may/or high quality is present Buffalo escort reviews for the 90% out of people which have fertility dilemmas . On the comparison off virility, the fresh levels off men reproductive hormonal are also analyzed. More recently, the unit constitution from cum muscle, assessed by the evaluating the level of DNA fragmentation or oxidative fret might have been increasingly taken into account. Several degree use the DNA fragmentation directory (DFI) once the an indication of pregnancy success. Considering Evenson and you can Wixon, DFI ranges from three to five% from inside the suit boys, if you are good DFI out-of ? 30% was of this less virility . Currently defined hereditary circumstances, in addition to both chromosomal aberrations and you may monogenic alter, account for no more than ten–15% out of cases of male sterility . The cause getting virility troubles can also be environmental affairs. The goal of the research were to analyze the connection anywhere between eating plan, energy harmony and you will virility pricing in the guys.
Method of books lookup
A comprehensive literature search of published studies in various languages, was carried out in electronic databases, including: PubMed, Cochrane Central Register of Controlled Trials (CENTRAL), Cochrane Database of Systematic Review and Google Scholar. Randomized controlled trials, observational and qualitative studies published between 2008 and 2018 (up to and including March) were included. The following keywords related to male infertility, diet, nutrients and their combinations (made by applying operators AND and OR) were used in the search: ‘male infertility’, ‘sperm quality’, ‘idiopathic oligozoospermia’, ‘astenoazospermia’, ‘oligoastenoteratozoospermia’, ‘sperm DNA damage’, ‘nutritional status’, ‘BMI’, ‘obesity’, ‘diet’, ‘nutrition’, dietary pattern’, ‘food’, ‘nutrient’, ‘fatty acids’, ‘antioxidant’, ‘supplementation’, ‘vitamin C’, ‘vitamin E’,’ vitamin A’, ‘folate’, ‘zinc’, ‘selenium’, ‘L-carnitine’, ‘glutathione’, ‘coenzyme Q10‘, ‘N-acetylcysteine’, ‘lycopene’. Reference lists of studies extracted from the primary electronic search were used to identify additional relevant studies.
|Semen factor||Resource restriction (95% trust durations)|
|Semen regularity||step one.5 ml (step one.4–step 1.7)|
|Complete sperm fertility||39 mil each squirt (33–46)|
|Cum focus||fifteen billion per ml (12–16)|
|Powers||58% alive (55–63)|
|Modern motility||32% (31–34)|
|Overall (progressive + nonprogressive) motility||40% (38–42)|
|Morphologically regular versions||cuatro.0% (step 3.0–4.0)|