Dr. Holick says a sweaty forehead is often one of the first noticeable symptoms of a vitamin D deficiency, especially in ...

Jack Dorsey’s new app wants to help you catch some sun — without the burn. The Twitter (now X) co-founder just launched a new iPhone app called Sun Day. It’s designed to track your UV exposure and ...

Oftentimes, a vitamin d test is not needed. Instead, doctors look at overall risk and your symptoms to decide if ...

A new Briefing Paper, Diet in Pregnancy, published by the British Nutrition Foundation, combines the findings of academic research and recommendations from authoritative institutions into a roadmap ...

Typically, people with osteoporosis should maintain a serum 25-hydroxyvitamin D level of 30 ng/mL and supplement daily with 1 ...

Learn how vitamin D supplements may affect your blood pressure, who may benefit most, and how much to take safely—especially ...

Twitter co-founder Jack Dorsey has released a new app that tracks your sun exposure and vitamin D levels. It’s his second app ...

Jack Dorsey launches Sun Day to track UV exposure and Vitamin D intake, following his Bluetooth-based messaging experiment ...

Jack Dorsey is shipping. On Sunday, the Twitter co-founder shared a link on X (formerly Twitter) to a new app called Sun Day, ...

How long it takes for vitamins and supplements to work depends on factors like the type of vitamin, your diet and hydration, ...

B vitamins, including B1 (thiamine), B6, B12, and folate, are essential for energy production and cell repair. People with ...

Jack Dorsey has launched a beta version of Sun Day, an app that estimates sun exposure time and vitamin D levels using UV index, skin tone, age, clothing, and Apple Health data.