Also known as the ‘sunshine vitamin’, Vitamin D is produced naturally in the skin when it’s exposed to sunlight. Vitamin D is essential to maintain healthy bones, muscles, teeth, and the normal function of the immune system. Although you can get small amounts of vitamin D from certain foods such as egg yolks or cod liver oil, they are unlikely to provide sufficient vitamin D. Age, skin tone, lifestyle, pollution and body mass can also all impact on how the body makes and uses vitamin D.
The NHS recommends that everyone should consider taking daily vitamin D supplements, especially between October and early March to maintain sufficient levels of vitamin D. They also advise that adults can take up to 100µg/4000IU of vitamin D daily.
Proto-col's vitamin d3 provides you with the vitamin D that you need, including the higher doses required during autumn and winter when the sun isn’t strong enough for your body to make enough vitamin D.