Vitamin D and Hormonal Health: Why It Matters More Than You Think

As the days get shorter and we spend less time outdoors, it's not uncommon to feel more tired. You may find that you have less energy or you're picking up every cold that's going around. There can be many reasons for this, and one thing that's often overlooked is vitamin D.

In fact, scientists now recognise that vitamin D behaves much more like a hormone than a traditional vitamin because it acts on cells throughout the body.

It's important for your immune system, muscle function, mood and overall wellbeing. It also works alongside many of the body's hormones, which is why it's something I often consider when supporting women with hormonal symptoms.

What is Vitamin D?

Vitamin D is often called the 'sunshine vitamin' because your body makes it when your skin is exposed to sunlight. Although we can get small amounts from certain foods, sunlight is our main source.

Vitamin D acts more like a hormone. Once it's made in the skin or absorbed from food or supplements, it's converted into its active form and helps regulate many important functions throughout the body.

In the UK, we can usually make enough vitamin D from sunlight between late March and September. However, during the autumn and winter months, the sun isn't strong enough for our bodies to produce adequate amounts. That's why it's a good idea to consider taking a daily vitamin D supplement during this time.

Could You Be Low in Vitamin D?

Low vitamin D doesn't always cause obvious symptoms, and many people don't realise their levels are low.

Some common signs can include:

• Feeling tired or lacking energy

• Getting frequent coughs, colds or infections

• Muscle aches or weakness

• Low mood, particularly during the winter months

• Bone or joint pain

• Slower recovery after illness

These symptoms can have many different causes, so it's important not to assume vitamin D is the reason. However, if you're experiencing several of them, it's worth getting a vitamin D blood test.

How Does Vitamin D Affect Your Hormones?

While vitamin D isn't a treatment for hormonal imbalances, maintaining healthy levels provides an important foundation for overall health and wellbeing.

Oestrogen

As oestrogen levels naturally decline during perimenopause and menopause, women become more prone to bone loss. Vitamin D helps your body absorb Calcium and Phosphorus, making it important for maintaining healthy bones and muscles. Researchers are also looking at how vitamin D may interact with oestrogen in the body, although more research is needed to fully understand this relationship.

Thyroid Hormones

Your thyroid plays an important role in regulating your metabolism, energy levels and body temperature. Maintaining healthy vitamin D levels supports overall thyroid health.

Insulin

Insulin helps regulate your blood sugar levels by allowing glucose to move from your bloodstream into your cells, where it can be used for energy.

Vitamin D appears to play a role in both insulin secretion and insulin sensitivity. Some studies have found that people with low vitamin D levels are more likely to experience insulin resistance, although vitamin D alone is not a treatment for diabetes.

Melatonin

Melatonin is the hormone that helps regulate your sleep-wake cycle. While vitamin D doesn't directly produce melatonin, both are influenced by our exposure to daylight. Spending time outdoors during daylight hours helps your body produce vitamin D and also supports your natural body clock, playing an important role in good sleep.

This is one reason why getting outside during the day is good for both your physical and emotional wellbeing.

Parathyroid Hormone (PTH)

Parathyroid hormone works closely with Vitamin D to keep Calcium levels in the blood within a healthy range. When Vitamin D levels are low, parathyroid hormone increases, causing Calcium to be released from the bones to maintain normal blood Calcium levels. Over time, this can weaken the bones, which is why maintaining adequate vitamin D levels is so important for long-term bone health.

No hormone works in isolation. They all interact with one another and influence many different systems throughout the body. Making sure your Vitamin D levels are healthy is one of the simplest ways to support your overall health.

If you'd like to understand more about the factors that can affect your hormones, you may also find What Causes Hormone Imbalance? helpful.

How Can You Improve Your Vitamin D Levels?

There are several ways to help maintain healthy vitamin D levels through a combination of sunlight, and diet. During the autumn and winter months supplementation is often needed.

Spend Time Outdoors

Sunlight is our main source of vitamin D. During the spring and summer, spending short periods outdoors with your forearms, hands or lower legs exposed can help your body produce the vitamin D it needs.

In the UK, from around late March to the end of September, the sun is usually strong enough for us to make vitamin D. During the autumn and winter months, however, sunlight isn't strong enough for most people to produce adequate amounts.

Consider a Vitamin D Supplement

Because it's difficult to get enough vitamin D from sunlight during the Winter in the UK, it is good to consider taking a daily vitamin D supplement from October to early March.

Include Vitamin D-Rich Foods

Although food alone usually isn't enough to meet your vitamin D needs, it can still make a valuable contribution.

Foods that naturally contain vitamin D include:

• Oily fish such as salmon, sardines and mackerel

• Egg yolks

• Liver

Eating a varied, balanced diet is one of the best ways to support your overall health alongside maintaining healthy vitamin D levels.

Looking at the Bigger Picture: A Homeopathic Approach to Hormonal Health

As a homeopath, I don't just look at one nutrient or one symptom in isolation. I look at the bigger picture, your hormones, energy, sleep, stress levels, lifestyle and overall health. Vitamin D may be one piece of the puzzle, but it's rarely the whole story. By understanding what's happening in your body as a whole, we can start to feel healthier and more like yourself again.

Want to Learn More About Homeopathy?

If you're curious about how homeopathy works and whether it could help you, I've put together a free eBook called Natural Health and Homeopathy: Your Questions Answered.

It answers many of the questions I'm asked, including what to expect from a consultation, how homeopathy works, and whether it's the right approach for you. It's designed to help you make an informed decision and understand how homeopathy can support your health naturally.

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Is homeopathy for you?

Homeopathy is used around the world for many health concerns. Whether you’re struggling with frequent colds, low energy, or just want to feel stronger through winter, it may be worth exploring.

Next steps

If you would like to speak to me about how homeopathy may help I offer a free 20 minute discovery call. During this call, we talk about you, your symptoms, and how they are affecting you and see if homeopathy may be beneficial to you.

I am always happy to hear from you.

Naziana x

I’m Naziana, a homeopath with a special focus on women’s health. Through gentle, natural approaches, I support people with a wide range of health concerns, from hormone balance and fatigue to allergies and chronic symptoms, helping the body return to a state of balance and wellbeing. Learn more about me.

Contact Naziana