It shouldn’t be surprising that alcohol and fertility don’t mix. As a young man, the more alcohol you drink, the lower your sperm count and the poorer your sperm quality are likely to be. Excessive alcohol intake is generally bad for health, particularly reproductive health.

Alcoholism is one lifestyle factor every man that is trying to father a child needs to be wary of. Several studies have shown that men who drink the most alcohol have the lowest sperm counts.

One study found that a significant effect was felt in men drinking as little as five units a week. A unit was defined as a single beer, a glass of wine or about the equivalent of a shot glass of liquor.
In the study published in The Journal BMJ Open, adjustments were made for
possible factors like diet, smoking, weight, etc., which did not explain the association. The research involved more than 1,200 Danish men undergoing a required medical examination to determine whether they were fit for military service.

The men were aged 18-28. They filled out questionnaires about their drinking, provided a semen sample and had their blood drawn.
Sperm concentration, total sperm count and percentage of normal sperm were all poorer among men having at least five drinks a week, compared to those drinking just one drink weekly. The amount of testosterone measured in the men’s blood, however, increased as their alcohol intake increased.
From the study, it was discovered that the drop in sperm count and quality became particularly significant among men indulging in at least 25 drinks a week. Men drinking 40
or more drinks a week had a 33 percent lower sperm concentration than those consuming one to five drinks a week.
Being intoxicated can lead to changes in hormones and other chemicals in the body, including cortisol, glucose, insulin and male hormones, all of which would affect sperm quality, and, poor sperm quality can affect fertility.

A second study published in the journal Sexually Transmitted Infections found that drinking a lot of alcohol was linked to a.
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