Theralogix Thera-D 4000 Vitamin D3 Supplement – 4,000 IU (100 mcg) – NSF Certified – 90 Tablets

Who Needs Vitamin D Supplementation?

Vitamin D deficiency is a common concern across the UK, especially during autumn and winter months when sunlight is limited. Individuals with darker skin, older adults, and those who spend most of their time indoors are particularly at risk. Theralogix Thera-D 4000 provides 4,000 IU (100 mcg) of vitamin D3 per tablet to help maintain adequate levels. If you are unsure about your vitamin D status, a simple blood test can provide clarity. Always consult your health care professional before starting any new supplement regimen.

Key Benefits of Vitamin D3 Supplementation

• Normal bones: Vitamin D3 contributes to the maintenance of normal bones by aiding calcium absorption.*
• Normal immune function: Adequate vitamin D3 supports the normal function of the immune system.*
• Normal muscle function: Vitamin D3 plays a role in normal muscle contraction and function.*
• Normal teeth: Vitamin D3 helps maintain normal teeth.*
• Normal cell division: Vitamin D3 contributes to the process of cell division.*

*These health claims are authorised by the European Food Safety Authority (EFSA).

Recommended Dosage of Vitamin D3

Official guidelines in the UK recommend a daily intake of 400 IU (10 mcg) for most adults, but many experts suggest higher doses for optimal levels, particularly for those with limited sun exposure. Thera-D 4000 delivers 4,000 IU per tablet, a maintenance dose suitable for many. Each bottle contains 90 tablets, providing a three-month supply. As a fat-soluble vitamin, it is best taken with a meal containing fat to maximise absorption.

Vitamin D3 vs D2: What’s the Difference?

Vitamin D exists in two primary forms: D2 (ergocalciferol) and D3 (cholecalciferol). D3 is the same form produced by your skin when exposed to sunlight and is considered more effective at raising and sustaining blood levels. Thera-D 4000 uses D3 for optimal bioavailability. Research indicates D3 is more efficient at supporting calcium absorption and immune health compared to D2.

Choosing a Quality Vitamin D Supplement

Not all supplements are equal. Thera-D 4000 stands out with NSF certification, ensuring independent testing for purity and potency. It is manufactured in the USA, gluten-free, vegan, and free from artificial colours, flavours, and additives. Theralogix has been trusted by health care professionals for over two decades. When selecting a vitamin D product, prioritise third-party testing, appropriate dosage, and clean ingredients.

Safety and Side Effects

Vitamin D3 is safe when used as directed. The 4,000 IU dose in Thera-D 4000 is well within the tolerable upper intake level established for adults in the UK. Extremely high doses over long periods can lead to toxicity, so it is essential not to exceed the recommended intake. If you are pregnant, breastfeeding, or taking any medications, consult your doctor beforehand. Side effects are rare but may include mild digestive discomfort.

Why Choose Theralogix Thera-D 4000?

With a high-dose of biologically active vitamin D3, third-party NSF certification, and a clean formulation, Thera-D 4000 is a reliable choice for supporting your vitamin D needs. The convenience of one tablet per day makes it easy to incorporate into your routine. Whether you are looking to maintain healthy bones, a robust immune system, or normal muscle function, this supplement offers a quality option backed by years of health care professional trust.

This product is a food supplement. Always read the label and follow directions for uses. If you have any medical conditions or are taking medication, consult your health care professional before uses.