How to Improve Sperm Quality?

Men can improve sperm quality by consuming a Mediterranean diet that is rich in antioxidants, zinc, Omega-3 and vitamins:

• Antioxidants – help reduce free radicals in the body that damage sperm DNA. Found in fruits, vegetables and nuts.
• Zinc – promotes healthy sperm development and motility. Found in shellfish, lean meats and seeds.
• Omega-3 – improves sperm count and motility. Found in fish
• Vitamins – vitamins C, D, E and B12 all work to improve sperm health by reducing oxidative stress, regulating testosterone production and improving motility. Found in fruits, vegetables and supplements.

Regular exercise, good sleep and reduced exposure to stress all promote healthy sperm production.

• Regular exercise – helps regulate testosterone levels, improves blood flow to the reproductive system and helps individuals maintain a healthy weight, improving sperm health.
• Good sleep – getting seven to nine hours of sleep every day boosts testosterone production, improves sperm morphology and motility, and reduces stress.
• Reduced stress – prolonged exposure to stress increases cortisol levels, which inhibits testosterone production. Stress also leads to oxidative stress damage that impacts sperm DNA.

The testes are designed to function best at 2-4℃ lower than body temperature. Increasing ambient temperature can inhibit healthy sperm production and cause changes in sperm motility, morphology and concentration. Simple lifestyle changes include avoiding:

• Hot tubs and saunas
• Tight clothing
• Hot electronics on your lap
• Extended periods of intense exercise

Men looking to improve sperm quality should also look to avoid environmental toxins, such as:

• Pesticides and herbicides
• Solvents
• Fine particulate matter in highly polluted areas
• Heavy metals like lead and mercury
• Perfluorinated Compounds (PFAs), such as those found in non-stick cookware

Smoking has a significant impact on sperm quality, and stopping is one of the most effective ways of improving sperm health. Smoking:

• Reduces sperm count and motility
• Releases toxins that cause DNA fragmentation
• Drastically increases oxidative stress, damaging sperm cell membranes
• Impairs hormone regulation
• Is linked to erectile dysfunction.

Alcohol has a pronounced effect on sperm health, and experts suggest minimising intake or ceasing altogether if possible. Alcohol:

• Disrupts hormones and testosterone production, reducing sperm count
• Contains free radicals that cause DNA fragmentation
• Acts as a toxin to certain cells in the testes, impacting sperm production.

Men can take supplements that are designed to improve sperm quality. However, these “sperm boosters” are largely unproven and regularly contain ingredients that have no known effect on sperm. The market is also under-regulated, resulting in many low-quality products. Sperm supplements are best used by men who have visited a fertility specialist and been diagnosed with a specific nutrient deficiency. Even then, supplements are not guaranteed to work. 

If you are looking for supplements for sperm, ingredients with some evidence supporting benefits to sperm health include:

• CoQ10 – may improve sperm motility
• Zinc – a key antioxidant that helps support healthy sperm production
• Folic acid & vitamin B12 – may reduce genetic abnormalities in sperm production
• Vitamins C & E – may protect sperm from oxidative stress damage.

Key lifestyle factors influencing sperm quality include:

• Smoking – smoking is associated with DNA damage. reduced sperm count, decreased motility and increased abnormal morphology.
• Alcohol consumption – alcohol is linked to lower testosterone levels, impaired spermatogenesis and DNA damage.
• Diet – processed foods, trans fats and high sugar levels are linked to reduced sperm count and motility. Mediterranean-style diets that feature plenty of fruits, vegetables, nuts, whole grains, fish and olive oil are associated with lower DNA fragmentation.
• Exercise – lack of exercise and weight gain can lower testosterone production and damage sperm. 

Sleep – both insufficient and excessive sleep can disrupt hormone production, impacting sperm quality. Aim for seven to nine hours.

Sperm quality can also be impacted by reproductive health and fertility issues, such as:

• Sperm disorders – a lack of sperm (azoospermia), very low sperm count (oligozoospermia), poor sperm motility or abnormal sperm morphology (shape) all negatively impact sperm quality.
• Varicoceles – an enlargement of the veins in the scrotum can increase temperature, impacting sperm production.
• Hormonal imbalances – conditions that affect the testicles or pituitary gland can lead to low testosterone and impact sperm production.
• Obstructions – the tubes responsible for delivering sperm can become blocked, reducing the likelihood of conception.

Environmental factors that can impact sperm production and quality include:

• Temperature – high heat can impact sperm production by increasing instances of abnormal morphology and reducing sperm count and motility. High heat environments can include hot tubs and sitting with a laptop on the lap.
• Pollution – fine particulate matter increases oxidative stress, reducing sperm concentration and motility. Sustained exposure can lead to DNA damage.
• Exposure to toxins and chemicals – exposure to pesticides, plastics and heavy metals disrupts hormone production and impacts sperm count, motility and morphology.