How to Improve Egg Quality Naturally: The 90-Day Fertility Window
September 3, 2026 No Comments
If you’re a woman trying to conceive, you’re probably spending an awful lot of time tracking your cycle, taking your temperature, watching your diet, checking your mucus (oh, the joy …) and all kinds of other things you never realized you’d do in order to get pregnant.
You may also be giving your partner the side-eye and wondering why he doesn’t have to completely change his habits and schedule and diet and track things on his calendars!
And, honestly, you’d be totally right.
The commitment — although not exactly equal — is on both of you to make sure you’re creating the prime environment for successful conception to happen.
There are actually a TON of things your partner should be doing in order to optimize his little swimmers because, remember, he makes up 50% of the baby-making equation!
Because sperm production takes roughly 72 to 90 days including maturation and transit, the health choices being made today influence the quality of sperm available for conception several months from now. Which means if a woman is using the ninety days before a cycle to support egg development, he’s working with almost exactly the same window.
Male fertility refers to a man’s biological ability to father a child. This involves producing healthy sperm in the right quantity and quality, and the sperm must be healthy enough to successfully fertilize a woman’s egg.
Factors like sperm count, motility (movement), and morphology (shape) are critical indicators of male fertility.
The simplest measurable part of a man’s reproductive health is sperm count, or the number of sperm in his ejaculate, most often expressed as the number of sperm found per millilitre (ml) of semen with each ejaculation.
Sperm morphology refers to the shape and size of sperm. Ideal sperm should have a head that is oval in shape, have a mid-section, and have a long, straight tail.
Sperm motility refers to the sperm’s ability to move in a straight line. If the movement of the sperm is sluggish or not in a straight line, then the sperm will have a hard time attempting to invade the cervical mucus, or penetrate the egg.
Healthy, normal shaped, quick swimming sperm are pertinent in not only fertilizing an egg, but also in providing optimal DNA so that the embryo is genetically healthy and has a greater chance of surviving.
Have you seen the latest research on what’s happening with our men from Shanna Swan, PhD, one of the world’s leading environmental and reproductive epidemiologists at the Icahn School of Medicine at Mount Sinai in New York?
Here are some highlights:
〰️ The global fertility rate has dropped 50% between 1960 – 2016, with the US birth rate 16% below where it needs to be to sustain the population.
〰️ After analyzing 185 studies involving nearly 45,000 healthy men, Swan and her team found that over the past four decades, sperm counts among men in Western countries had dropped by ~59%. Yikes.
〰️ Swan estimates that by 2050, a large portion of the global population will need assisted reproductive technology to procreate. Double yikes.
〰️ Sperm counts have been dropping, infant boys are developing more genital abnormalities, and men’s problems with conception are on the rise. Erectile dysfunction is increasing and testosterone levels are decreasing 1% each year.
〰️ Men are experiencing lower testosterone levels and, as a result, more men are getting prescriptions for testosterone replacement therapy, which increases testosterone levels but causes an even greater reduction in sperm count. “Ninety percent of men can have their sperm counts drop to zero while they’re on it,” says Swan.
〰️ Sexual desire among men is also declining. Swan, who has studied infertility for more than 30 years, says men are seeking help for erectile dysfunction on average seven years earlier than they did in 2005, with 26% of men falling under the age of 40.
〰️ Research shows an overall increase in genital abnormalities, including a higher rate of undescended testicles, and unusually small penises. Growing numbers of sperm appear defective with some having two heads or wandering aimlessly instead of pursuing an egg.
Scary? For sure.
Fixable? Heck yes.
Despite that, the workup, the lifestyle changes, the supplements, and the appointments tend to land almost entirely on the woman.
Healthy sperm are the most important part of fertilization, but other elements also play a role.
Genetic issues may involve chromosomal abnormalities or mutations that affect sperm production or function, including problems in the hypothalamus or the pituitary gland, testicular disease, and sperm transport disorders. Hormonal imbalances, such as low testosterone levels, can interfere with sperm production and quality.
Age is another factor — sperm quality and quantity decline with age. Male fertility generally starts to decline around age 40 to 45. As men age, sperm quality, including motility, morphology, and concentration, tends to decrease, making it more challenging to fertilize an egg. The decline can be up to 23% annually starting at age 39.
Overall health and the presence of underlying medical conditions, such as diabetes or infections, can significantly affect male fertility as well.
“The problem isn’t that something is inherently wrong with the human body as it has evolved over time; it’s that chemicals in our environment and unhealthy lifestyle practices in our modern world are disrupting our hormonal balance.” — Shanna Swan
According to Swan and her colleagues, the bigger problem could be caused by hormone-disrupting chemicals found in our day to day lives.
Microplastics negatively impact male fertility by causing oxidative stress and inflammation in the reproductive system. Studies have shown that exposure to microplastics can lead to decreased sperm quality, including reduced sperm count and motility. Additionally, microplastics can disrupt hormone levels, further affecting fertility.
Endocrine-disrupting chemicals like BPA (bisphenol A), phthalates, poly- and perfluoroalkyl substances (PFASs), and pesticides can be found in household products, personal care items, and industrial pollutants, which can interfere with hormonal balance and damage sperm.
Phthalates are in things like personal care products, and they mimic the body’s hormones. They help hand lotion penetrate your skin, and they help the smell get into your nose. They also help the pesticides get to the plant. The most common source of exposure to phthalates is food, because phthalates are in all soft tubing and soft coverings used to process and package food. Heat combined with food is a bad combination in the presence of phthalates. They have many impacts on humans, but the worst is their ability to lower testosterone.
Bisphenols are compounds that act on estrogen, as opposed to the phthalates, which act on testosterone. They make plastics hard. They’re found in almost all plastics — tupperware, food containers, baby bottles, drinking water bottles, and every other million way plastic is used. The most familiar is BPA but there are substitutes like BPS, BPF, and so on.
Pesticides are hormonally active in many ways, depending on the particular formulation. They get into our foods. They’ve also been found in people who are handling these products occupationally. Pesticides are a major source of exposure and a real risk to our hormone system.
Flame retardants are chemicals that are in everything from cushions in our sofas to our kids’ pajamas to firefighting foam. They’re really hard to get rid of in our homes.
PFAS are chemicals that are used, for example, in Teflon to make things stick-resistant. They also make things water-resistant, like raincoats. These are chemicals that have strong hormonal effects, particularly on the thyroid and the immune system.
Yes, and this is the part of the conversation that routinely gets skipped.
Male factor is involved in a substantial share of couples facing fertility challenges, either on its own or alongside female factors. Despite that, the workup and the lifestyle changes and the supplements and the appointments tend to land almost entirely on the woman.
There is a detail here that makes this directly relevant to everything else in this post.
Sperm has a development window too, and it is almost exactly the same length as yours. Producing mature sperm takes roughly 72 to 90 days including maturation and transit. Which means the same ninety days you are using to support egg development is a window your partner has as well.
That reframes this from “one more thing to worry about” into something considerably more useful. You are not preparing alone. You are both preparing, on the same clock, for the same cycle.
If you’re going to change anything, it helps to know where you’re starting.
A standard semen analysis reports three things: count, motility, and morphology. How many sperm there are, how well they move, and what shape they are. It’s a useful test and it’s the right first step.
But it doesn’t measure DNA fragmentation, which is the integrity of the genetic material the sperm is carrying. A sample can come back entirely normal on count, motility, and morphology while carrying significant DNA damage.
That matters, because sperm DNA integrity is relevant to fertilization, embryo development, and pregnancy loss. And DNA fragmentation testing isn’t part of a routine workup.
Which means a couple can be told “his results are normal” without anyone having looked at it.
If that sounds familiar, it should. It’s the same pattern women run into when they’re told their labs look normal, and what that actually means is that the labs that were run looked normal.
It’s rarely unexplained on either side. It’s uninvestigated.
What to ask for: a standard semen analysis, and a sperm DNA fragmentation test. If your provider doesn’t offer the second, ask where you can get it.
We’ve covered the latest research in male fertility rates, the how and why of decreasing sperm counts and fertility rates, and now let’s look at how to naturally optimize sperm health.
Diet plays a significant role in overall health and can directly impact sperm quantity and quality.
A balanced diet rich in essential nutrients is vital for maintaining optimal sperm health. Key nutrients like zinc, selenium, and omega-3 fatty acids support sperm production and motility, ensuring healthy sperm function. Including a variety of fruits, vegetables, whole grains, nuts and seeds, and animal proteins can help provide these essential nutrients.
Targeted supplements can also play a role in addressing any nutritional gaps and further supporting male fertility.
Certain foods can negatively impact male fertility by affecting sperm quality and overall reproductive health — here’s what you want to eliminate from your diet:
On the flip side, this is what you should include in your diet:
Choose organic. It’s not a gimmick. It’s serious and important and worth the extra money. Especially for the fragility of the sperm cells. If you’re unable to buy everything organic and you’re needing to choose the most important – anything that comes from an animal MUST BE ORGANIC! Animals accumulate toxicity much more than plants do. Make sure your animal foods are of the highest quality you can get your hands on.
Focus on eating real, whole, fresh, organic food that you cook yourself. Eat high-quality organic protein, clean and healthy fat sources, a variety of organic fruit and veg, lots of greens, and fermented foods like sauerkraut, kimchi, kombucha, properly fermented yogurt or kefir. Purchase the highest quality of food you can find and afford.
To ensure his body is capable of doing all of the above, we need to ensure that his body has optimized nutrient levels to promote high quality sperm that can get the job done. There a TON of options when it comes to supplements, but I’ve narrowed down my top 6 for you:
Men’s Complete Multivitamin: a full-spectrum multivitamin with Albion chelated minerals for maximum absorption and bioavailability. This powerhouse multivitamin supplies supporting nutrients not normally found in regular multis, such as alpha lipoic acid, TMG, fruit bioflavanoids, choline, and inositol. This formula also contains vitamin E, high levels of all B vitamins, and natural mixed carotenoids.
Omega-3 fatty acids: ensure a healthy sperm membrane, which is required for proper sperm maturation. Omega 3’s also improve sperm count significantly.
Detox Antiox: combines many nutrients that have a positive effect on sperm health, including zinc, vitamin C, E, selenium, and other potent antioxidants. Adequate zinc intake is important for the creation of the outer membrane and tail of a sperm. Sperm utilize zinc for maturation, mobility and strength. Zinc is also necessary for hormone balance. Selenium is necessary for proper sperm formation.
This formula also contains multiple ingredients known to raise glutathione levels making it helpful for protecting delicate sperm cells. It also combats free radicals and helps detoxify harmful chemicals including heavy metals. L-Leucine when taken with NAC prevents mercury from being reabsorbed into the central nervous system.
CoQnol Ubiquinol 100mg: contains ubiquinol, the reduced, antioxidant form of CoQ10. As an antioxidant, coQ10 increases fertility, especially in men. CoQ10 improves sperm motility and is especially useful for men with poor sperm quality. CoQ10 is necessary for a healthy sperm cell membrane and energy (forward movement). It is also protective of sperm cells and protects the important genetic codes they carry (DNA) for creation of a healthy child.
L-Arginine: researchers have discovered that Arginine regulates nitric oxide, a powerful compound in the blood responsible for regulating blood flow, immune function, communication among nerve cells, liver function, blood clotting, and even sexual arousal. Arginine acts as a natural Viagra – improving erectile function and increasing the quantity of sperm (by up to 250%). Arginine also improves sperm motility and health.
Carnitine Synergy: L-Carnitine is an amino acid responsible for shuttling omega fatty acids. L-Carnitine has been shown to help normalize sperm motility in men with low sperm quality. L-Carnitine helps sperm to metabolize fats and sugars for energy, and it’s vital for the formation of sperm cells. L-Carnitine stimulates the natural production of sperm, and the higher the sperm-cell count, the higher the chances for fertilization. Not only does L-Carnitine increase sperm levels, but it also enhances the sperm’s motility and improves the health of the sperm cells. It is believed that this supplement can be particularly efficient for the treatment of age-related infertility in men.
This includes getting rid of chemical-laden personal care products, cleaning products, yard fertilizers, etc. Eliminate all plastic from your kitchen. Don’t drink out of plastic water bottles. Avoid canned goods, only buy brands that specify “BPA-free”. Handle paper receipts as little as possible and wash your hands afterwards. Avoid using cologne, antiperspirant, and aluminum-containing deodorant. Look for cleaning and laundry products that are plant-based, fragrance-free and phthalate-free. Throw away all non-stick Teflon-type cookware. Cook only in cast iron, stainless steel, glass or ceramic.
Drink at least ½ your bodyweight in ounces of clean, filtered water per day. Do not drink out of plastic water bottles, use glass or stainless steel refillable bottles.
Help your testicles create the perfect environment for making healthy sperm by avoiding hot tubs, saunas, hot baths, briefs/tights shorts/tight pants, excessive cycling (occasional cycling is fine, but make sure to take frequent breaks and get those tight shorts off IMMEDIATELY after a ride).
Reducing stress is one of the most important things you can do to optimize your sperm health. Easier said than done, but start small. Take a daily walk outside to clear your mind, try meditation, deep breathing, yoga, or massage, and just do your best to do at least one small thing each day that you enjoy.
Find an activity that you love, remember to avoid activities like cycling, take breaks to keep the boys cool, and avoid the sauna! HIIT training is awesome for increasing testosterone production!
The best news so far in this post may be that frequent ejaculation can increase sperm production (it’s a demand/supply thing). However you manage it, try and ejaculate daily.
Detoxification is a natural process used by the body to eliminate harmful substances. Supporting your body’s detox pathways can improve fertility and overall health. By reducing exposure to toxins and enhancing the body’s ability to detoxify, you can help remove substances that negatively impact sperm quality and reproductive health.
Infrared saunas are a powerful tool for detoxification and overall health. Unlike traditional saunas, which heat the air around you, infrared saunas use infrared light to penetrate your body and promote sweating from deep within. This helps eliminate toxins more efficiently, including heavy metals and environmental pollutants that can negatively impact sperm quality. Regular use of infrared saunas can improve circulation, reduce stress levels, and support overall well-being — all of which contribute to better reproductive health.
The liver is a vital organ for detoxification, processing toxins, and ensuring they are safely eliminated from the body. Supporting liver health is crucial for maintaining optimal fertility. Incorporating liver-supportive foods like garlic, turmeric, and leafy greens into your diet can enhance liver function and its detoxifying capabilities. These foods contain compounds that help activate liver enzymes responsible for breaking down and removing toxins.
The gut microbiome, which consists of trillions of beneficial bacteria, plays a role in nutrient absorption and reducing inflammation. Maintaining a balanced gut microbiome can positively impact sperm health by improving the absorption of essential nutrients needed for sperm production. Incorporating probiotics and prebiotics into your diet can support a healthy gut microbiome.
Taking proactive steps to support male fertility through diet, nutrition, and environmental awareness can make a significant difference.
By incorporating nutrient-rich foods, targeted supplements, and effective detoxification strategies, men can improve their reproductive health.
Reducing exposure to harmful toxins and maintaining a balanced lifestyle further enhances fertility. These efforts collectively contribute to creating a healthier environment for sperm production and increasing the chances of conception. Making informed choices about diet, supplements, and lifestyle practices can lead to better fertility outcomes and overall well-being.
If you’re trying to get pregnant and looking for a solution-based, comprehensive approach, read my complete guide: What’s Actually Preventing Pregnancy and How to Fix It.
If you’ve been told everything looks normal but you’re still not pregnant, or you have a diagnosis like PCOS, endometriosis, or poor egg quality and nothing is working, there’s almost always something deeper that hasn’t been found yet.
Standard fertility testing rarely evaluates the factors that actually determine whether pregnancy happens: egg quality, ovulation quality, metabolic health, inflammation, nutrient status, and how your body responds to stress.
After nearly 20 years and over a thousand clients, I’ve found that most fertility struggles come down to a small number of hidden drivers preventing pregnancy. When those drivers are identified and addressed in the right order, the body responds.
That’s exactly what we uncover inside The Fertility Code, my 12-week, high-touch fertility program for women who are done guessing. We find what’s been missed and build a clear, personalized strategy around your body, your labs, and your history.
With 1:1 coaching, direct access between calls, lab reviews, evidence-based content, and structured accountability, you get expert eyes on your case so you can stop second-guessing and start moving forward with clarity.
Over 90% of the women I work with go on to conceive.
If you’re ready to finally understand what your body needs for a successful pregnancy and address what’s been missed, you can explore the program here → The Fertility Code.
Or schedule a free Fertility Strategy Call to see if the program is right for you.
© 2026 Sarah Jane Sandy. All rights reserved. Privacy Policy | Terms and Conditions | Medical Disclaimer | Editorial Policy
Curious about your fertility health? Take this simple quiz to find out what factors may be harming your fertility, and learn what you can do about it!
