B Vitamins ▪︎ Vitamin B12 ▪︎ Vitamin D ▪︎ Vitamin C ▪︎ Vitamin K ▪︎ Vitamin A ▪︎ Iron ▪︎ Iodine ▪︎ Zinc ▪︎ Calcium ▪︎ Magnesium ▪︎ Choline ▪︎ Spirulina ▪︎ Turmeric ▪︎ Ashwagandha
A healthy and varied diet should give us all the nutrients we need to support our concentration, digestion, keep a healthy heart, strengthen our bones and muscles, build our immunity, give us energy, and much more.
In reality it can be difficult to get all the necessary nutrients with an active life, and being on the move so supplements are often necessary to give your body the vitamins and minerals it needs.
B vitamins include vitamins B1, B2, B3, B5 and B6 which are all required for releasing energy from food. Low levels of B vitamins can lead to feeling tired, depressed or irritable.
Pork, chicken, turkey, lamb and beef contain B vitamins, and plant foods that contain B vitamins include whole grains, bread, fortified cereals, soya beans, nuts, and some fruits and vegetables. B vitamins are water soluble and the body lacks the ability to store them, so any surplus intake your body doesn't use is excreted in the urine.
Vitamin B12 is found in almost all foods of animal origin so is one of the most common nutrient deficiencies among vegans. Green plants do not provide Vitamin B12 and although it can be synthesized by some algae and bacteria, the bioavailability of Vitamin B12 from plant-based dietary forms is disputed.
Vitamin B12 is essential for growth and division of your body's cells and the forming of red blood cells in your body. It helps keep your nervous system healthy and plays an important role in releasing energy from your food. A deficiency of B12 can cause tiredness, fatigue, and anaemia, and is a particular risk for vegans. The Vegan Society recommend those on a vegan diet take a B12 supplement, such as a Vegan Vitamin B12, or include B12 fortified non-dairy milk alternatives, fortified breakfast cereal or yeast extract in your diet.
Vitamin D isn't actually a vitamin, it is a hormone which is made in the skin when exposed to UVB sunlight, which gives it the name 'The Sunshine Vitamin'. The UK Government recommends adults should take a daily Vitamin D supplement (in particular over the winter months) because it helps your body absorb calcium and phosphate from your diet, both of which are essential for healthy bones. It also benefits the heart and immune system and studies show it can help maintain a balanced mood.
Vitamin D is only found in a small number of foods, mainly of animal origin, such as oily fish, meat and egg yolks. Some foods such as breakfast cereals and plant milk alternatives may be fortified with Vitamin D, and some mushrooms are grown under UV light to enhance their Vitamin D content.
The most effective source of Vitamin D is D3 from vegan-friendly plant sources such as lichen, or animal sources such as lanolin or sheep's wool. D2 is an alternative source from plants such as mushrooms grown in UV light, but it is less effective at increasing vitamin D levels in the blood. A Vegan Vitamin D3 from lichen is considered the more effective form. Vitamin D is fat-soluble so absorption is improved when you take it with food containing some healthy fats.
Vitamin C has a huge range of benefits including protecting cells and supporting the immune system, keeping skin, blood vessels and bones healthy and helping any wounds to heal. Vitamin C also improves your body's Iron intake from plant foods which is especially important for those who don't eat meat because Iron from plants is much harder for the body to absorb. If you're taking an Iron supplement, look for a gentle Iron and that also contains Vitamin C.
The best food sources of Vitamin C are fruits and veg, particularly citrus fruits, berries, peppers and dark green leafy vegetables. It is water-soluble so you need to include these foods in your diet each day as the body can't store it. Vitamin C is also one of the most unstable vitamins and easily destroyed during cooking, so raw, fresh fruits and vegetables are the best source, and when cooking, use only a small amount of water.
Vitamin K is a less well-known vitamin but plays an important role in your heart health and bone health, and normal blood clotting. There are two forms: Vitamin K1 (phylloquinone) found in plant foods and Vitamin K2 (menaquinone) found in animal and fermented foods, which is generally more easily absorbed by your body. A good Daily Multi-Vitamin should contain the daily recommended level of Vitamin K2.
The best dietary sources are green leafy vegetables such as green cabbage, broccoli, Brussels sprouts and spinach, while tea also contains vitamin K. It is a fat-soluble vitamin, so any Vitamin K your body doesn't need immediately is stored in the liver for future use. Some Vitamin K can be made by bacteria in the large intestine, and there is evidence that long-term use of antibiotics may contribute to lower levels of Vitamin K.
Vitamin A is essential for supporting good vision, especially in dim light. Yes, eating carrots can help you see in the dark! Vitamin A also supports your immune function and maintains healthy skin and mucus membranes such as the lining of the nose and urinary tract.
Vitamin A is found in foods of animal origin such as dairy, eggs and liver. However, it is also available from plant sources in the form of beta-carotene which the body converts into Vitamin A. The main sources of beta-carotene are yellow, red and green leafy vegetables such as carrots, squash, sweet potatoes, red peppers, spinach and kale. Yellow fruits such as mango, apricots and papaya are also good sources. Generally the more intense the colour of the fruit or vegetable, the more beta-carotene it will contain.
Iron is required by your body for making haemoglobin, the oxygen-carrying protein in red blood cells, so it is essential for a healthy immune system and maintaining your energy levels. Iron deficiency is a common cause of anaemia and feeling low on energy and is quite common for women with heavy periods.
There are two sources of iron: haem iron found in foods of animal origin and non-haem iron found in plants. It is well known the most readily available food source of iron is red meat. Useful plant sources include beans, chickpeas and lentils; green leafy vegetables such as spinach, kale and watercress; dried apricots and nuts and seeds such as sesame (and tahini paste), pumpkin seeds and cashew nuts. Iron absorption from plant foods can be as little as 2-5% but including a source of Vitamin C with your meals can improve absorption by 10x. This is why Iron supplements containing Vitamin C are considered better. Tea and coffee hinder iron absorption so it's best to avoid these with meals, or leave at least 30 minutes before or after a meal before you drink your brew. Soaking nuts and seeds or using sprouted seeds and grains also improves the absorption of iron from them.
Iodine is needed for the production of thyroid hormones which maintain your body's metabolic rate. Iodine is especially important during pregnancy as it is essential for the baby's brain development.
Most of the Iodine in the world is found in the oceans, so seafoods are a rich source, particularly white fish such as haddock and cod. Cow's milk is also a major source of Iodine. Seaweed is a very concentrated source of Iodine so eating it more than once a week is not recommended, especially during pregnancy as too much Iodine can cause issues with your thyroid (involved in making hormones involved in metabolism and growth, and for the development of a baby's brain during pregnancy). Plant milk alternatives are not commonly fortified with Iodine so anyone who avoids fish or dairy products could be at risk of Iodine deficiency, and a number of studies have shown iodine deficiency in pregnant women. A good quality Daily Multi-Vitamin should contain the recommended daily intake of Iodine.
Zinc is required for the normal function of your immune and reproductive systems. It is involved in various metabolic pathways and is essential for cell division and growth and repair of body tissue.
Zinc is found in many foods and is most easily absorbed from meat. It is also found in shellfish, dairy foods and whole grains, beans, lentils, nuts, seeds and eggs. Phytates (antioxidants) found in plant foods such as whole grains and legumes can reduce the body's absorption of Zinc, so it's important for vegetarians and vegans to eat a variety of plant foods to get adequate levels from their diet. A good quality Daily Multi-Vitamin should contain the recommended daily intake of Zinc.
Milk, cheese and other dairy products provide about half of the calcium in a typical diet, so if you don't consume dairy products it is difficult to get adequate Calcium. Plant-milk alternatives and yogurts with added calcium can be helpful, and tofu can be a source if it is set using calcium chloride (E509) or calcium sulphate (E516), so check the label.
Small fish with small edible bones such as sardines, beans, chickpeas, sesame seeds, tahini (sesame paste), dried figs and almonds are useful sources of Calcium. Green leafy vegetables kale, spinach and broccoli contain good amounts of Calcium, however Calcium in these foods is bound to a compound called oxalate which limits its absorption. Bread is also an important source because most bread flour (not wholemeal) is fortified with calcium by law in the UK and many countries.
Magnesium is a 'Superhero' of minerals. It is an essential nutrient in all human tissues, particularly in your bones and is involved in obtaining energy from food, muscle and nerve function, and blood clotting.
Magnesium can be found in a range of foods including wholegrain cereals, nuts, legumes, dairy foods, meat and fish. Chlorophyll (the green pigment in plants) contains Magnesium so green leafy vegetables are a useful source.
Although deficiency in Magnesium is rare, it is quite common for people to have too low levels. Your body uses more Magnesium when you're stressed as it helps to soothe the nervous system, which is why it is often taken for managing stress and improving sleep.
Choline is a less commonly known nutrient but is essential for maintaining a healthy liver. Choline produces a substance required for removing cholesterol from your liver and can help prevent conditions such as fatty liver disease. Alcohol can increase the body's requirement for Choline, and a high alcohol intake can increase your risk of choline deficiency. Choline is also beneficial for heart health and is important during pregnancy as it is a key nutrient for developing babies.
Eggs, milk, meat and fish are the main dietary sources of Choline. It is also found in plants foods with soya products, quinoa and broccoli some of the best plant sources.
Spirulina is a blue-green algae packed with nutrients such as protein, B-vitamins, Copper and Iron. It also contains Vitamin B12 but not in a form that is absorbed easily. It can be available in supplement form and has been used in some food products such as snack bars and smoothies.
Spirulina contains many antioxidants that help protect the body's cells from damage. It is also thought to help reduce blood pressure and lower blood sugar levels, although scientific studies are ongoing to fully confirm this.
Turmeric has been used as a medicinal herb for thousands of years. Turmeric contains more than 300 bioactive compounds, including the most active compound, Curcumin. Curcumin is a powerful antioxidant that helps protect your body's cells from damage and reduce inflammation. Chronic inflammation plays a role in many Western diseases such as heart disease, cancer, obesity, Alzheimer's and arthritis. It is the curcuminoids which are responsible for Turmeric's yellow colour.
Using Turmeric along with oil and black pepper increases its effectiveness because curcumin is fat soluble and the compound contained in black pepper, piperine, improves absorption. A Daily Multi-Vitamin with Turmeric is a option to support your digestive health.
Ashwagandha is best known for its ability to help reduce stress and anxiety, and in helping promote a feeling of calm and wellbeing. It has been used as a medicinal herb for 3000 years. A small shrub with yellow flowers found in India and North Africa, extracts of the Ashwagandha plant's roots and leaves is thought to have benefits for brain function, reducing symptoms of depression, helping with sleep problems, boosting fertility in men, reducing blood sugar in people with diabetes and reducing inflammation.