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.

Addition

The latest frequency of infertility one of partners regarding reproductive age brackets, based on individuals source, of 8% so you can twenty five% [1–3]. Male infertility is the simply reason behind infertility from inside the 20–30% out-of circumstances and you will a factor contributing to infertility when you look at the fifty% of all of the sterility cases . New assessment away from male potency constantly boasts scientific examination and you will analysis towards site thinking of your after the sperm details: regularity, total sperm fertility, concentration, motility and you will morphology (Dining table 1) . Lower sperm count and you will/or top quality is present in the ninety% from people with virility dilemmas . In the research from virility, this new concentrations regarding male reproductive hormone also are reviewed. Now, the newest molecular composition away from spunk muscle, examined by researching the amount of DNA fragmentation otherwise oxidative stress has been increasingly taken into account. Numerous studies make use of the DNA fragmentation list (DFI) because an indicator of pregnancy achievement. Based on Evenson and Wixon, DFI ranges away from 3 to 5% from inside the healthy men, when you are an effective DFI away from ? 30% are from the less fertility . Already outlined genetic things Tempe escort reviews, in addition to both chromosomal aberrations and you will monogenic transform, be the cause of just about 10–15% out-of instances of men infertility . The reason to have fertility troubles could be environment factors. The goal of the study would be to become familiar with the relationship ranging from eating plan, energy harmony and fertility rates when you look at the guys.

Approach of literary works research

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.