PCOS and Pregnancy: Improving fertility with Diet

I was diagnosed with PCOS in 2010 when I had difficulty falling pregnant. Although I always knew that something was wrong, getting the diagnosis was devastating.

It took 9 months for me to fall pregnant – not very long in the greater scheme of things and I’m very grateful that it was actually relatively quick. I know that there are many, many women out there who struggle to fall pregnant for much longer than that.

FertilityWe’re now trying for our second miracle baby and every month I wonder about the same things. What can I do to improve my chances of pregnancy? Have I ovulated this month? If my period is late, is it because of my messed up hormones or did I conceive by some very slim chance? It’s very frustrating to be so out of control in this area.

Before we have a look at some of the things we can all do to our PCOS and pregnancy plan, please remember that I am not a doctor and you should consult your doctor to find out what will work for you. I just want to share with you the things that I have found helpful personally and the things that I have researched regarding PCOS and Pregnancy.


Your PCOS Pregnancy Diet

You know how much I believe in the power of a PCOS diet and food to manage PCOS so it comes as no surprise that diet would be top of Everything we eat impacts on our hormones.

my list when it comes to improving fertility. Food is important because everything we eat impacts on our hormones, either helping to keep them in balance or throwing them off kilter.

Insulin and Testosterone

It is particularly important that insulin levels are managed as increased insulin causes increased testosterone production. These male hormones are decidedly unhelpful for fertility and conception! So, make sure you’re eating low GI carbs and are balancing your carbs with protein. The best PCOS Diet will give you more guidance on how to eat to manage your PCOS and pregnancy may just surprise you as your symptoms improve.


As with many other hormones, women with PCOS tend to have an imbalance in Estrogen levels. They can either be too high or too low. There are a number of factors that can lead to estrogen dominance and two of the big culprits are xeno-estrogens (estrogen from the environment such as plastics, cosmetics, etc) and estrogen from animal products. The xeno-estrogens in the environment is a whole discussion on it’s own so I’ll do an article on that soon.

One way that we can manage excess estrogens is by considering estrogens in our diet. We get estrogen from two sources: plant (phytoestrogens) and animal sources.

Improving fertility soyPhytoestrogens are particularly controversial at the moment. They work by attaching to the estrogen receptor like a lock and key. The estrogen your body produces can’t fit into the occupied receptor and float freely in the body, increasing estrogen levels.

However, there is also a theory that because the body sees that the receptors have these phytoestrogens, it realizes that it doesn’t need to produce as much estrogen and estrogen levels drop.

Research has shown that soy in particular can cause delayed ovulation. So, as I am trying for a baby, I have cut soy out of my diet completely.

Let’s have a look at estrogen from animal products. A lot of meat, beef in particular, contains hormones that have been given to the animal to increase yield and production. We then ingest these hormones (and other antibiotics) which can impact on our hormone balance.

Improving fertility steakIf you do eat meat, organic, pasture fed meat is the best kind of meat to go for as it will be free of hormones and other synthetic products that the animal may have eaten. The only problem is that this kind of meat is particularly expensive.

I personally try to avoid all meat products (not always successfully though!) I want to know that what I’m putting into my body is going to help bring balance and that I’m not ADDING hormones to my already disordered system.

Weight Loss

Apart from trying to regain our hormone balance, diet is also key to loosing weight for women with PCOS. I know that it is incredibly hard to lose weight and is a struggle we face daily. However, research has shown that losing even 5-10% of our total body weight can help to restore our cycles and improve our chances of conceiving.


Supplements are an important aspect to our PCOS and Pregnancy plan. Women with PCOS have deficiencies in some vitamins and nutrients which could be impacting on our ability to conceive.


A good multivitamin forms the foundation of any supplement and nutrition plan so make sure you take a good multivitamin everyday.


Improving-fertility-SupplementsMany of us are deficient in this important nutrient and it is important for digesting and metabolizing glucose in the blood stream. It is also helpful for improving the body’s sensitivity to insulin.

Chromium can help improve fertility by lowering insulin levels and therefore also lowering testosterone levels.

If you are already taking insulin-sensitising drugs, make sure you speak to your doctor before taking Chromium supplements. Taking both can cause your blood sugar levels to drop too much.

Vitamin D and Calcium

I have mentioned the importance of Vitamin D and Calcium supplements here, but Vitamin D is important for insulin resistance, breast health, mood and weight loss. Women with PCOS are often deficient in this important Vitamin and research has shown that supplementing with Vitamin D and Calcium helps to regulate menstrual cycles and improve the number of mature follicles.

Mature follicles and a more regular menstrual cycle sounds great for improved fertility!

Vitamin B

Improving fertility GracieA shortage of Vitamin 6 can lead to an imbalance in progesterone, irregular menstrual cycles and poor quality sperm and egg production. It also helps to regulate blood sugar levels and may increase the luteal phase of the menstrual cycle.

Folic acid, or Vitamin B9, is also an essential supplement during the early stages of pregnancy as it helps with the development of the neural tube and can help prevent spina bifida in your baby.

I take a Vitamin B complex supplement every day to make sure that I’m getting all of the essential Vitamin B that I need.

Omega 3

I have also recently written an article on the importance of Omega 3. Omega 3 and essential fatty acids are important as they are an essential component of hormones and Omega 3 in particular has been shown to lower testosterone in women with PCOS.

Lower testosterone is not only great for improving fertility but also for managing some of those other pesky symptoms of PCOS.

Supplements are an important element to your PCOS and pregnancy plan.

Summing up

So, to sum it all up, these are the steps that I am taking to improve my diet and my chances of pregnancy with PCOS:

  • Balance carbs with protein
  • Eat low GI carbs
  • Eat organic, pasture fed meat
  • Eat more plant based proteins if you can’t afford organic meat
  • Avoid soy and soy products
  • Make sure you’re taking supplements

You may also find this article on pregnancy risk factors for PCOS interesting…

I don’t know about you but I want to give my body and my baby the best chance, not only of conceiving but having a healthy and happy pregnancy!

I’d love to hear about the things you are doing to improve your chances of pregnancy with PCOS! Drop me a comment below!

The PCOS Weight Loss Program Inclues:


MORE Related Posts

Tarryn Poulton

Tarryn Poulton

Tarryn Poulton is a PN1 Certified Nutrition Coach and PCOS expert who has been a leader in the online PCOS space for over 8 years. Tarryn has the support of leading clinicians from around the world who support her scientific approach to understanding and talking about PCOS this includes all medical journals and ongoing research. You can read more about Tarryn and the team here.

56 Responses