NOW Foods Vitamin A & D3 25,000/1,000 IU, 100 Softgels

What is vitamin D and why is it important?

Vitamin D, also known as cholecalciferol (D3), is a fat-soluble vitamin essential for numerous bodily functions. Its main role is to regulate the absorption of calcium and phosphorus, key minerals for bone health. In addition, it plays a role in the functioning of the immune system and muscle contraction. Although our body can synthesize it with sun exposure, many factors — such as low sunlight in winter, the use of sunscreens or living in northern latitudes — make it difficult to reach optimal levels. For this reason, vitamin D3 supplements have become a widespread aid.

This product combines vitamin A (25,000 IU) and vitamin D3 (1,000 IU) in a single softgel, offering complete nutritional support. Vitamin A is equally important: it contributes to the maintenance of normal vision, skin care and the function of the immune system.

Health benefits of vitamin D

According to the European Food Safety Authority (EFSA), vitamin D contributes to:

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

In addition, vitamin D plays a role in the process of cell division. Maintaining adequate levels is especially important for the elderly, pregnant women, growing children and those with low sun exposure.

Benefits of vitamin A for vision and skin

Vitamin A, in the form of retinyl palmitate (which is what this supplement contains), is essential for:

• The maintenance of normal vision.
• The normal functioning of the immune system.
• The maintenance of normal skin.
• Normal iron metabolism.

Both vitamins act synergistically, supporting overall health from different fronts.

How much vitamin D do you need? Recommended dose

The dose of vitamin D3 in this product is 1,000 IU per capsule, an amount that is within the commonly recommended range for healthy adults. Individual needs may vary depending on age, sun exposure and health status. The daily reference intake established by the EU is 200 IU, but many experts suggest higher doses, especially in winter. This supplement provides 1,000 IU, an amount that can help maintain adequate serum levels without exceeding the upper safety limits established by EFSA (4,000 IU daily for adults).

It is recommended to take one softgel daily with a meal containing fat to optimize its absorption. If you have questions about the appropriate dose for you, consult a healthcare professional.

Differences between vitamin D2 and D3

Vitamin D comes in two main forms: ergocalciferol (D2), of plant origin, and cholecalciferol (D3), of animal origin (lanolin). D3 is the form naturally produced by human skin and is considered more effective in raising and maintaining vitamin D levels in the blood. This product uses D3, which ensures good bioavailability. Vitamin D2 comes from plant sources and is used in some vegan supplements, but its potency is usually lower.

When choosing a supplement, it is preferable to opt for D3, as it is better assimilated and has a greater affinity for cell receptors.

How to choose the best vitamin D supplement

When selecting a vitamin D supplement, consider:

• Form: D3 (cholecalciferol) is the most recommended.
• Dose: 1,000 IU is a common maintenance dose; higher doses may be necessary under supervision.
• Certifications: This product is soy-free, kosher and GMP (Good Manufacturing Practices) certified. In addition, NOW Foods has its own ISO/IEC accredited laboratories to guarantee stability and potency.
• Combination with vitamin A: Added vitamin A provides additional benefits for vision and skin, but keep in mind that vitamin A also accumulates in the body. Do not exceed the recommended dose.

This NOW Foods supplement, a brand founded in 1968, is a reliable option for those seeking high-quality essential nutrition.

Possible side effects and contraindications

In general, vitamins A and D3 are safe when taken at recommended doses. However, excessive doses of vitamin A (above 10,000 IU daily for long periods) can be toxic. Very high doses of vitamin D (more than 4,000 IU daily) can cause hypercalcemia. This product provides 25,000 IU of vitamin A and 1,000 IU of vitamin D3, safe amounts for most adults, but should not be taken with other supplements containing high doses of these vitamins without professional advice.

Pregnant or breastfeeding women, as well as people with liver or kidney diseases, should consult their doctor before using this supplement.

This product is a food supplement, it should not be used as a substitute for a balanced diet.