Based on current research, it seems that consuming 1,000–4,000 IU (25–100 mcg) of vitamin D daily should be ideal for most people to reach healthy vitamin D blood levels.
However, don’t consume more than 4,000 IU of vitamin D without your doctor’s permission. It exceeds the safe upper limits of intake as stated by the NHS and is not linked to more health benefits.
All Natural Supplies Vitamin D3 4000iu is a key nutrient manufactured in a highly absorbable liquid softgel that is easy to swallow. Synthesised in the skin via exposure to sunlight, vitamin D is often associated with the term 'the sunshine vitamin'. As we age, the winter season and many sunblock products inhibit the skin's ability to convert vitamin D into its active form, so we are thought to be more at risk of vitamin D deficiency. Vitamin D plays a vital role in many areas of our health. It not only contributes to the maintenance of normal bones, but is responsible for enhancing intestinal absorption of calcium and phosphate. It is also known for its role in supporting normal functions of the immune system, normal cell division and normal muscle function. Vitamin D has received extensive coverage in the media recently and new research is continuing to look into the benefits of receiving our optimum amount of this vital vitamin.