April 20, 2024
Read this comprehensive guide to learn about the best vitamin D to take, including types of supplements, how to determine your ideal dosage, the role of sunlight in vitamin D synthesis, the importance of vitamin K2, common mistakes to avoid, and top-reviewed brands.


Vitamin D is an essential nutrient that plays a crucial role in our overall health. However, many people don’t get enough of it and turn to supplements. With so many different types and brands of vitamin D supplements, it can be overwhelming to choose the right one. In this article, we’ll explore the best vitamin D to take.

The Benefits of Vitamin D

Vitamin D helps our bodies absorb calcium and maintain healthy bones. It also regulates our immune system, supports lung function and cardiovascular health, and even influences gene expression. Studies have linked vitamin D deficiency to an increased risk of diseases such as osteoporosis, heart disease, and cancer.

Different Types of Vitamin D Supplements

There are two main types of vitamin D supplements available: vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Vitamin D3 is the preferred type as it’s more readily absorbed by the body and raises vitamin D levels more effectively. Vitamin D2, on the other hand, is not as potent as D3 and is usually used for prescription vitamin D.

However, if you are a vegan or vegetarian, vitamin D2 supplements are a good option since they are derived from plants, and most vitamin D3 supplements come from animal sources.

Determining Your Optimal Dosage

The optimal dosage for vitamin D depends on your age, weight, activity level, and other factors. The recommended daily allowance (RDA) for vitamin D is 600-800 IU (international units) per day, but some experts suggest that amounts up to 5000 IU per day are safe and effective for most people.

It’s best to get your vitamin D levels tested to determine how much you need. Your healthcare provider can perform a blood test to determine your vitamin D levels and recommend a personalized dosage.

Sunlight & Vitamin D Synthesis

Our bodies can produce vitamin D when our skin is exposed to sunlight. However, many factors can affect vitamin D synthesis, including skin color, sunscreen use, and geographic location.

If you don’t get enough sunlight, you can get vitamin D from food sources such as fatty fish, egg yolks, and fortified foods like milk and orange juice. Supplements are also an effective way to get enough vitamin D when sunlight and food sources are not sufficient.

The Importance of Vitamin K2

Vitamin K2 plays a critical role in vitamin D metabolism. It activates proteins that regulate calcium levels in the body, preventing calcium from accumulating in the arteries and reducing the risk of cardiovascular disease.

When taking vitamin D supplements, it’s vital to take vitamin K2 alongside them to ensure proper calcium utilization and reduce the risk of arterial calcification.

Common Mistakes to Avoid

One common mistake people make when taking vitamin D supplements is taking too much. While vitamin D is essential for our health, taking high doses can lead to toxic levels in the body and have adverse effects. It’s important to follow the recommended dosage and consult your healthcare provider before starting any supplement regimen.

Another mistake is not taking vitamin D with food. Since vitamin D is fat-soluble, taking it with a meal that contains healthy fats can improve absorption.

Top-Reviewed Brands of Vitamin D Supplements

When choosing a vitamin D supplement, several factors should be considered, such as dosage, form, purity, and third-party testing.

Some top-reviewed brands include:

  • NatureWise Vitamin D3 5,000 IU
  • Now Foods Vitamin D3 5,000 IU
  • Viva Naturals Vitamin D3 5,000 IU

These brands are known for their purity, potency, and effectiveness, and are third-party tested to ensure quality.


Vitamin D is a vital nutrient that plays a crucial role in our health, and getting enough of it is essential. When choosing a vitamin D supplement, opt for vitamin D3, and make sure to take it alongside vitamin K2 to ensure proper calcium utilization. Avoid common mistakes like taking too much or not taking it with food, and choose a reputable brand that is third-party tested. Consult with a healthcare professional before starting any new supplement regimen to determine the optimal dosage for your needs.

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