Vitamins: Which Ones Are Essential and Which Should You Take Every Day?
Vitamins are essential for countless vital functions in the body. They play a key role in supporting the immune system, energy production and metabolism, the health of the skin, hair, and eyes, as well as overall physical and mental performance. Getting enough vitamins helps reduce the risk of nutrient deficiencies, which may contribute to symptoms such as fatigue, frequent infections, or muscle weakness.
But which vitamins are the most important, which ones should you consume every day, and how can you ensure an optimal vitamin intake? In this guide, you'll learn about the functions of the most important vitamins, the difference between fat-soluble and water-soluble vitamins, and practical tips for meeting your daily vitamin requirements.
Vitamins are essential for many functions in the body
Vitamins are organic micronutrients that the body needs in small amounts to maintain vital processes. Although they do not provide energy themselves, they are essential for metabolism, immune function, cellular protection, and healthy growth. Because the body cannot produce most vitamins, or can only produce them in limited amounts, they must be obtained through food or targeted dietary supplements.
Fat-soluble vitamins
Fat-soluble vitamins are absorbed together with dietary fats and are stored primarily in the liver and body fat. These include vitamins A, D, E, and K. They support a variety of essential functions, including vision, bone health, cellular protection, and normal blood clotting. Because the body can store these vitamins, a regular intake is important, although daily consumption is generally less critical than it is for water-soluble vitamins.
Water-soluble vitamins
Water-soluble vitamins, including the B vitamins and vitamin C, are not stored in the body for long periods and therefore need to be consumed regularly through food. They play a vital role in energy metabolism, the production of red blood cells, normal nervous system function, and immune support. A deficiency can quickly lead to symptoms such as fatigue, increased susceptibility to infections, or skin problems.
Essential vitamins for everyday health and their functions
Below is an overview of the most important vitamins and their key functions. Each vitamin contributes in its own way to overall health and well-being.
- Vitamin A supports healthy vision, contributes to the maintenance of healthy skin and mucous membranes, and is important for growth and normal immune function.
- B vitamins are a group of water-soluble vitamins that includes vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin B7 (biotin), vitamin B9, and vitamin B12. They play a vital role in energy metabolism, nervous system function, red blood cell formation, and skin health.
- Vitamin C supports the immune system, contributes to collagen formation for healthy skin, bones, and blood vessels, and acts as an antioxidant that helps protect cells from free radicals.
- Vitamin D is naturally produced by the body when the skin is exposed to sunlight. It contributes to healthy bones and muscles and is especially important for people who get little sunlight in their daily lives.
- Vitamin E is a powerful antioxidant that helps protect cells from oxidative stress, supports healthy skin, and contributes to normal immune function.
- Vitamin K is essential for normal blood clotting and helps maintain strong bones by supporting the proper use of calcium in bone tissue.
Vitamins for immune support
Certain vitamins are essential for supporting the body's natural defenses and maintaining a healthy immune system. The most important among them are vitamins A, C, D, and E.
Vitamin A helps maintain healthy skin and mucous membranes, which serve as the body's first line of defense against pathogens. Vitamin C supports the production of white blood cells, contributes to normal immune function, and acts as an antioxidant to help protect cells from free radicals. Vitamin D helps regulate the immune response and plays an important role in normal immune function. Vitamin E also acts as an antioxidant and supports the normal function of immune cells.
To provide additional support for the immune system, you may also consider high-quality products from our range. These include our supplements for immune support, which combine key nutrients, as well as our Astaxanthin Capsules, valued for their antioxidant properties and their ability to support the body's natural defenses.
Wie viel Vitamin braucht der Körper täglich?
Der tägliche Bedarf an Vitaminen ist individuell und hängt von Faktoren wie Alter, Geschlecht, Lebensstil und Gesundheitszustand ab. Offizielle Empfehlungen (z. B. D-A-CH-Referenzwerte) geben jedoch eine gute Orientierung. Einige Richtwerte für Erwachsene:
How much vitamin does the body need each day?
The daily requirement for vitamins varies from person to person and depends on factors such as age, sex, lifestyle, and overall health. However, official recommendations (such as the D-A-CH Reference Values) provide useful guidance. Some recommended daily intakes for adults include:
- Vitamin C: approximately 95–110 mg per day
- Vitamin D: approximately 20 µg per day (if there is insufficient sun exposure)
- Vitamin E: approximately 12–15 mg per day
- Vitamin B12: approximately 4 µg per day
Individual requirements may be higher depending on personal circumstances, such as pregnancy, stress, intense physical activity, or limited exposure to sunlight.
Vitamin C: ca. 95–110 mg täglich Vitamin D: ca. 20 µg täglich (bei fehlender Sonnenexposition) Vitamin E: ca. 12–15 mg täglich Vitamin B12: ca. 4 µg täglichDer tatsächliche Bedarf kann je nach Lebensumständen erhöht sein, z. B. bei Schwangerschaft, Stress, viel Sport oder wenig Sonnenlicht.
Who should pay particular attention to their vitamin intake?
Maintaining a balanced vitamin intake is important for everyone. However, there are certain stages of life and situations in which vitamin requirements may be higher.
For example, proper nutrition is especially important when trying to conceive, as it helps prepare the body for a healthy pregnancy. During pregnancy, the need for certain vitamins increases significantly because both the mother and the developing baby require an adequate nutrient supply. The same applies to breastfeeding women, whose nutritional requirements are also elevated.
Vegetarians and vegans should pay particular attention to their intake of certain vitamins, such as vitamin B12 and vitamin D, as these are found mainly in animal-based foods or can only be obtained in limited amounts from plant-based sources.
Vitamin D deficiency is also common in Germany, even among people who eat a mixed diet, because the body produces most of its vitamin D through exposure to sunlight. During the winter months, it is easy to develop an insufficient vitamin D supply.
Tips for optimal vitamin intake
To meet your daily vitamin requirements, vitamins should primarily come from a varied diet based on natural foods. Fruits, vegetables, whole grains, nuts, seeds, fish, and eggs provide many of the essential micronutrients your body needs. A balanced diet helps ensure an adequate supply of vitamins that support metabolism, immune function, healthy skin, strong bones, and energy production.
The table below lists foods that are particularly rich in vitamins and can be included regularly as part of a healthy diet.
| Vitamin | Food Sources |
|---|---|
| Vitamin A | Carrots, sweet potatoes, spinach, leafy greens, lamb's lettuce, tomatoes |
| Vitamin B1 (Thiamine) | Wholegrain bread, legumes, chickpeas, whole grains, soybeans |
| Vitamin B2 (Riboflavin) | Milk, eggs, cheese |
| Vitamin B6 | Poultry, fish, bananas, potatoes |
| Vitamin B12 | Meat, fish, eggs, yogurt |
| Vitamin C | Bell peppers, broccoli, citrus fruits, Brussels sprouts, peas |
| Vitamin D | Salmon, herring, egg yolks, mushrooms, algae |
| Vitamin E | Nuts, seeds, avocado, wheat germ oil, vegetable oils |
| Vitamin K | Kale, spinach, broccoli, Brussels sprouts, leafy greens |
| Vitamin H (Biotin) | Eggs, nuts, oats, soybeans, avocado |
If your nutritional needs cannot be met through diet alone, taking vitamin supplements may be beneficial. This can help correct or prevent potential vitamin deficiencies.
When dietary supplements are beneficial
In many cases, a balanced diet rich in fruits and vegetables already provides sufficient vitamins and minerals. However, there are situations in which the body may require additional nutritional support.
If your daily diet does not provide enough essential nutrients and trace elements, dietary supplements can help fill nutritional gaps.
In our shop, you'll find a range of high-quality products to complement your individual nutritional needs. These include our vitamins for daily support, Vitamin D3 Drops for periods of limited sun exposure, Vitamin E Drops for antioxidant support, as well as Iron Capsules and our Magnesium Complex to help support your mineral intake.
Important: Dietary supplements are not a substitute for a balanced diet but are intended to complement it. Ideally, supplementation should be tailored to your individual needs. If you are unsure whether you have a nutrient deficiency, it may be advisable to have your nutritional status assessed by a healthcare professional.
Find answers to the most frequently asked questions about essential vitamins in our FAQ below:
Adequate vitamin intake is especially important for pregnant women, breastfeeding mothers, people trying to conceive, older adults, as well as vegetarians and vegans. People experiencing high levels of stress, intense physical activity, or following a restrictive diet should also pay close attention to maintaining a sufficient vitamin intake.
Vitamins are involved in building and protecting cells, supporting the immune system, and are essential for energy production, nervous system function, red blood cell formation, metabolism, and bone health.
Ideally, all essential vitamins should be obtained regularly through a balanced diet. Daily intake is particularly important for water-soluble vitamins, such as vitamin C and the B vitamins, because the body does not store them for long. In the case of vitamin D, supplementation may also be beneficial when sun exposure is limited.
Yes. In particular, excessive intake of fat-soluble vitamins such as vitamins A, D, E, and K can lead to their accumulation in the body. For this reason, the recommended daily intake should not be exceeded over the long term, and supplementation should ideally be tailored to individual needs.