Klean Athlete Klean-D | Vitamin D3 5000 IU – 100 Tablets, NSF Certified for Sport

What Is Vitamin D3?

Vitamin D is a fat-soluble vitamin that acts like a hormone in the body. The most bio-available form is vitamin D3 (cholecalciferol), which your skin produces when exposed to sunlight. However, many people in the UK struggle to get enough due to limited sun, higher latitudes, and sunscreen uses. Klean Athlete Klean-D provides 5,000 IU (125 mcg) of vitamin D3 per tablet to help maintain healthy blood levels. This convenient once-daily supplement is especially useful during autumn and winter when sun exposure is low.

Key Health Benefits of Vitamin D3

• Immune Function: Vitamin D contributes to the normal function of the immune system.*
• Muscle Function: Vitamin D contributes to the maintenance of normal muscle function.*
• Bone Health: Vitamin D contributes to the maintenance of normal bones and to normal absorption and utilisation of calcium and phosphorus.*

*These are authorised EFSA health claims. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

Who May Benefit from Supplementing?

Individuals with limited sun exposure – such as office workers, those in northern climates, or people who cover their skin – often need extra vitamin D. Athletes may require higher intakes to support muscle recovery and performance. Older adults, people with darker skin, and those on restricted diets (e.g., vegan) are also at risk of low levels. If you have a condition affecting fat absorption or are obese, you may need a higher dose. Klean-D offers a simple way to top up your levels.

What Dosage Is Right for You?

Each Klean-D tablet provides 5,000 IU (125 mcg) of vitamin D3, a dose that is often recommended to correct deficiency or maintain optimal levels in active individuals. The UK government suggests 400 IU (10 mcg) daily for the general population, but many experts advocate higher intakes, especially if blood levels are low. A simple blood test can help determine your personal needs. Always consult a health care professional before starting supplementation, particularly if you take other medicines or have underlying health conditions.

Quality and Purity: NSF Certified for Sport

Klean Athlete products are formulated without GMOs, wheat, gluten, artificial colours, flavours, or sweeteners. Every batch undergoes rigorous third-party testing through the NSF Certified for Sport programme, which screens for over 200 banned substances. This certification gives athletes and health-conscious consumers confidence that what's on the label is exactly what's in the bottle. Manufacturing facilities follow Good Manufacturing Practices (GMP) to ensure consistent quality and purity.

Safety and Considerations

Vitamin D is generally safe, but excessive intake can lead to toxicity. Do not exceed the recommended dosage unless advised by a health care practitioner. If you have kidney disease, hypercalcaemia, or are pregnant or breastfeeding, consult your doctor before uses. Store in a cool, dry place away from direct sunlight.

Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.