USANA Vitamina D 2000 UI – 84 Comprimidos

What is vitamin D and why is it important?

Vitamin D is an essential fat-soluble nutrient that plays a key role in calcium absorption, maintaining healthy bones, and the normal functioning of the immune system. Our body primarily produces it after sun exposure, but factors such as lack of sunlight, sunscreen use, or age can reduce its synthesis. This USANA supplement provides 2000 IU of vitamin D3 (cholecalciferol), the most bioavailable form, along with vitamin K2 to complement its benefits. Each tablet offers a high but safe dose to maintain optimal levels throughout the year.

Health benefits of vitamin D

The European Food Safety Authority (EFSA) has approved several health claims for vitamin D. Specifically, vitamin D contributes to:

• Normal absorption and utilization of calcium and phosphorus.
• Maintenance of normal blood calcium levels.
• Maintenance of normal bones.
• Normal muscle function.
• Normal functioning of the immune system.

Additionally, vitamin D helps reduce the risk of falls associated with postural instability and muscle weakness, especially in people over 60 years of age. These benefits are supported by years of scientific research and are widely recognized by health authorities.*

* Health claims approved by EFSA.

How much vitamin D should I take daily?

The recommended daily dose varies depending on age, gender, sun exposure, and health status. For most adults, an intake of 600 to 2000 IU per day is adequate to maintain optimal levels. This supplement provides 2000 IU per tablet, an amount within the tolerable upper limit established by EFSA (4000 IU per day for adults). It is recommended to take one tablet daily, preferably with the main meal to improve absorption, as vitamin D is fat-soluble. The recommended dose should not be exceeded without consulting a healthcare professional.

Differences between vitamin D2 and D3

There are two main forms of vitamin D: D2 (ergocalciferol) and D3 (cholecalciferol). D2 is obtained from plant sources such as UV-exposed mushrooms, while D3 is produced in human skin after sun exposure and is also found in animal products such as lanolin (sheep wool fat). D3 is the most biologically active form and has been shown to be more effective than D2 at raising and maintaining blood vitamin D levels. For this reason, most high-quality supplements, like this one from USANA, use vitamin D3.

How to choose the best vitamin D supplement

When choosing a vitamin D supplement, consider aspects such as the form (D3 is preferable), dosage, absorption, and the presence of additional ingredients. This product combines vitamin D3 with vitamin K2, which also contributes to bone maintenance and normal blood clotting. The tablets are easy to take and do not contain gluten, lactose, or other common allergens. USANA is a brand recognized for its commitment to quality and purity, which guarantees a reliable product.

Possible side effects and contraindications

Vitamin D at recommended doses is generally safe and well-tolerated. However, excessive doses (above 4000 IU per day for prolonged periods) can lead to toxicity, with symptoms such as nausea, vomiting, loss of appetite, and weakness. This product should not be used as a substitute for a balanced diet or to treat or prevent diseases. If you are pregnant, breastfeeding, taking medication, or have any medical condition, consult your doctor before using this supplement.

This product is a food supplement and should not be used as a substitute for a balanced diet. Do not exceed the recommended daily dose. Keep out of reach of children.