Feeling Low This December? You Might Be Low on Vitamin D.

December 11, 2025

As the days get shorter and the winter season settles in, many people start to feel a dip in their energy, mood, and overall wellness. While holiday stress and colder weather may play a role, there’s another common culprit this time of year, Vitamin D deficiency.



December is the peak month for low Vitamin D levels across the country, especially for people who spend most of their day indoors. At Palms Pharmacy, we want to help you understand why Vitamin D matters and how you can support your levels this winter.

Why Vitamin D Matters

Vitamin D is often called the “sunshine vitamin” because your body produces it naturally when exposed to sunlight. It plays a key role in:

• Supporting immune function
• Maintaining healthy bones and muscles
• Regulating mood and mental wellness
• Reducing inflammation
• Supporting cardiovascular health

Low levels of Vitamin D can lead to fatigue, muscle weakness, lowered immunity, and even seasonal low mood, something many people experience during winter.

Why Vitamin D Deficiency Is Common in December

You’re more likely to experience low Vitamin D in December because:

• Days are shorter, limiting sunlight exposure
• Sunlight intensity is too weak for proper Vitamin D synthesis
• People spend more time indoors due to weather
• Increased use of sunscreen (still necessary!) blocks Vitamin D absorption
• Holiday routines disrupt outdoor activity

Over 40% of adults in the U.S. have a Vitamin D deficiency and this number rises during winter months.

How to Support Healthy Vitamin D Levels

Here are ways to help keep your Vitamin D levels in a healthy range:

1. Spend Time Outdoors

Even a short walk in the morning can help, but sunlight alone often isn’t enough during winter.

2. Eat Vitamin-D–Rich Foods

Such as:

• Fatty fish (salmon, tuna, sardines)
• Egg yolks
• Mushrooms exposed to UV light
• Fortified milk or cereals
  

3. Supplement Wisely

Most people need supplemental Vitamin D during winter months, especially if they work indoors or live in areas with minimal sunlight.

Palms Pharmacy Recommendation: Pure Encapsulations Vitamin D Packs

If you’re looking for high-quality support, our Pure Encapsulations Vitamin D packs are a trusted, pharmacist-recommended option. They provide a clean, science-backed dose of Vitamin D designed to support your immune system, bone health, and energy levels all winter long.

• Hypoallergenic
• Pure ingredients with no unnecessary fillers
• Easy, once-daily dosing
• Available directly through our Shopify Store. 

These packs are especially great for patients who struggle with fatigue during winter or those looking to boost immune function during cold and flu season.

Take Charge of Your Winter Wellness

If you’re feeling unusually tired or run-down this December, Vitamin D deficiency may be part of the reason. Stop by Palms Pharmacy to speak with our team, get personalized supplement recommendations, or shop our wellness products online.



Stay warm, stay healthy, and take care of ourselves this winter together.