【来源：中国日报网】冬天对大部分人来说都是一个“易病”的季节，有一种维生素与免疫力密切相关，而冬天却是人体含量最低的季节。 上海市第十人民医院内分泌代谢科副主任医师崔冉表示，人体维生素D水平有一个生理性的波动，夏天比冬天要高一些，冬天是一年四季中维生素D水平最低的季节。

From understanding its essential functions to exploring the best food sources and lifestyle tweaks, this guide has you ...

eat plenty of these vitamin C-rich foods: The very best source of vitamin D is sunshine, but plenty of foods contain trace amounts of vitamin D to support a well-rounded diet. It's hard to get ...

Other sources of the important vitamin are oily fish, red meat, liver and some fat spreads or breakfast cereals, according to ...

Here are the top 10 foods that you must add to your daily ... and sardines are some of the best sources of vitamin D. Just one serving of cooked salmon can provide around 570 IU (International ...

They found that scrambled eggs retained the most vitamin D, followed by microwaved and poached. Fried eggs were the worst, ...

As a rule, younger people need less vitamin D than older people, regardless of sex. This article explains average vitamin D ...

Vitamin D dosage recommendations ... in plant foods like mushrooms Vitamin D3 (cholecalciferol): found in animal foods like salmon, cod, and egg yolks However, sunlight is the best natural method ...

As we age, our bodies go through changes that can affect how we absorb and use nutrients. For those over 50, getting the ...

Vitamin deficiencies may not always present immediate symptoms but over time they can lead to serious health problems ...

Best Calcium Supplements without Vitamin D We know that calcium is an ... who get enough vitamin D from other sources, such as sunlight and food, or who have medical conditions that require ...

Consuming a balanced diet is important for maintaining overall health throughout the year, however, a nutritious diet is ...