Vitamin D3 Supplements

Known as ‘the sunshine vitamin’, vitamin D is created when sunlight touches the skin. The positive effects of vitamin D3 on healthy bones have long been recognised. What’s now becoming apparent is the many other ways it supports good health. Modern lifestyles mean that, for many, levels of this vital nutrient within the body have dropped.

Public Health England now recommends everyone in the UK take vitamin D tablets or vitamin D supplements in the autumn and winter. This is because vitamin D3, which we offer in our vitamin D supplements and vitamin D tablets, is important for your body’s processes. Our vitamin D tablets and vitamin D3 drops use the D3 form of vitamin D - the body's preferred form. Explore our great range of vitamin D supplements to see how you reach your daily vitamin D3 goals.

If you're struggling to choose from our Vitamin D supplements then check out ur guide Which Vitamin D Product Is Right for Me?

Vitamin D3 Supplements

5 Items

Set Descending Direction
per page

Vitamin D is one of the most important vitamins for your body’s processes! It can be hard to get recommended levels of vitamin D on average day-to-day, which is why vitamin D supplements can be a great choice. Vitamin D supplements can help promote strong and healthy bones. In addition to this vitamin D tablets can also help with maintaining your immune system. It’s great to stay on top of consuming your vitamin D tablets when it gets to winter and the nights get longer and darker. This is because we normally get our vitamin D from soaking in sunshine, which is limited in winter. Explore Nutri Advanced's range of vitamin D supplements...


Vitamin D is an incredibly important vitamin that plays a role in supporting many key areas of health. It is widely known for it’s role in supporting the immune system but it also plays a vital role to support healthy teeth, bones and muscles.

Vitamin D helps the body regulate the amount of calcium and phosphate and contributes to healthy blood calcium levels. Calcium and phosphate are needed to support healthy teeth, bones and muscles.

Vitamin D is also important for healthy cell division – a vital function in the human body. Therefore, if you feel as though you are not consuming enough vitamin D, try our vitamin D tablets or vitamin D supplements.

Vitamin D deficiency in children can lead to rickets, a condition that results in bone deformities. In adults, a vitamin D deficiency can cause osteomalacia which causes bone pain. Low Vitamin D levels can also lead to less severe symptoms such as poor muscle strength, a weakened immune system, and feelings of fatigue.

In the UK it is recommended that adults and children over the age of 4 should consider taking a vitamin D supplement in Autumn and Winter when the sun is not strong enough for your body to make vitamin D in response to sunlight.

Children aged 1-4 should take a vitamin D supplement all year round.

No, there are no scientific studies that have found it is harmful to take vitamin D tablets at night. There have been some anecdotal reports that taking Vitamin D close to bedtime can interrupt normal sleep patterns but there is no research or evidence that this is the case.

Recent evidence has suggested that vitamin D might play a role in inflammation. Several studies have investigated the mechanism of action, showing that vitamin D may help to downregulate pro-inflammatory molecules whilst upregulating anti-inflammatory molecules. Vitamin D deficiency has also been implicated in inflammatory conditions such as Crohn’s Disease and Rheumatoid Arthritis.

Make sure to only take the recommended dosage of vitamin D supplements. This is because if your vitamin D levels are too high over a significant time period this may cause too much calcium to build up in the body which can result in weakened bones, and damage to the kidneys and the heart. Therefore, it is important to regularly get your vitamin D levels tested when taking high strength Vitamin D supplements. Vitamin D levels are considered to be too high and in the range for toxicity when they are >374nmol/litre (>150ng/ml).

Your body uses vitamin D to absorb minerals like calcium and phosphorus, supporting healthy teeth and bones. Vitamin D also supports your muscles and immune system.

The recommended amount of vitamin D to take daily depends on your age. For children under 12 months, the recommended dosage is 400 international units (IU), 600 IU for people between 1 and 70 years, and 800 IU for people over 70 years.

• Bone weakness

• Frequent cold and flus

• Low immune function

• Muscle aches and pains

Oily fish like salmon, mackerel and sardines, as well as red meat, liver, and egg yolks are high in vitamin D. It is also frequently added to plant milks, fat spreads and breakfast cereals.

Excessive amounts of vitamin D can lead to high levels of calcium in the blood, which can cause you to become fatigued.

In general, the two main causes of vitamin D deficiency are not getting enough sunlight, or not getting enough vitamin D from your food. This can be easily remedied with our vitamin D supplements.

Vitamin D isn’t believed to affect anxiety directly. Usually, the opposite is true - vitamin D increases happiness levels, which in turn may reduce anxiety symptoms.

The amount of time that it takes to rectify any vitamin D deficiencies in the body depends on the level of deficiency itself. Therefore, this is on a case-by-case basis, but you might see results between around 8 to 16 weeks.