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 fresh frequency away from infertility certainly one of partners from reproductive age ranges, considering some sources, regarding 8% so you’re able to 25% [1–3]. Male sterility is the simply cause for infertility into the 20–30% away from times and you can a factor leading to infertility for the fifty% of the many infertility cases . The new comparison out of male potency always includes scientific examination and you may analysis on the source values of your following semen parameters: volume, total sperm count, amount, motility and you may morphology (Dining table 1) . Low sperm count and you may/otherwise quality is obtainable from inside the ninety% out of partners with fertility issues . Regarding testing out-of fertility, the brand new density off male reproductive hormonal are reviewed. More recently, the fresh new molecular constitution regarding spunk structure, reviewed of the comparing the amount of DNA fragmentation or oxidative stress has been much more considered. Multiple knowledge utilize the DNA fragmentation directory (DFI) because an indication of being pregnant achievement. According to Evenson and you can Wixon, DFI selections off 3 to 5% inside the match people, if you are a good DFI away from ? 30% are of this reduced virility . Already defined genetic items, as well as each other chromosomal aberrations and you will monogenic change, be the cause of no more than ten–15% of cases of men sterility . The reason to have virility dilemmas can also be ecological things. The goal of the research were to get acquainted with the partnership ranging from eating plan, opportunity balance and virility cost in guys.

Approach out of books look

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.