Vitamins and Minerals Guide for Beginners UK

Most people in the UK are not getting enough of at least one key micronutrient. This guide explains what vitamins and minerals actually do, which ones are most commonly lacking, and how to fill the gaps without overcomplicating your diet.

Quick answer: vitamins and minerals are essential micronutrients your body cannot make in sufficient quantities on its own. The most common UK deficiencies are vitamin D, vitamin B12, iron, and magnesium. A balanced diet covers most needs — but a nutritionally complete meal like Herbalife Formula 1 provides 21 key vitamins and minerals per serving, making it a practical daily foundation.

Written by Rachel Orriss  |  Last updated July 2026  |  7 min read

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What are vitamins and minerals?

Vitamins and minerals are micronutrients — substances your body needs in small amounts to function properly. Unlike macronutrients (protein, carbohydrates, fat), they do not provide energy directly. Instead, they enable almost every biological process: energy metabolism, immune defence, bone formation, nerve signalling, and cell repair.

There are 13 essential vitamins (A, C, D, E, K, and eight B vitamins) and around 16 essential minerals (including calcium, iron, magnesium, zinc, and potassium). "Essential" means your body cannot make enough on its own — you must get them from food or supplementation.

The NHS recommends getting most micronutrients from a varied, balanced diet. However, UK survey data consistently shows that large portions of the population fall short on several key nutrients — particularly vitamin D, iron, and magnesium.

The most common vitamin and mineral deficiencies in the UK

Vitamin D

The NHS recommends everyone in the UK consider a vitamin D supplement from October to March, as sunlight exposure is insufficient for most of the year. Deficiency is linked to fatigue, low mood, and weakened bones. Around 1 in 5 adults in the UK have low vitamin D levels according to NHS data.

Iron

Iron deficiency is the most common nutritional deficiency worldwide. In the UK it particularly affects women of childbearing age. Symptoms include tiredness, breathlessness, and difficulty concentrating. Good dietary sources include red meat, lentils, and fortified cereals.

Vitamin B12

B12 is found almost exclusively in animal products, making deficiency more common in people following plant-based diets. It is essential for nerve function and red blood cell production. Symptoms of deficiency include fatigue, pins and needles, and memory problems.

Magnesium

Magnesium supports over 300 enzymatic reactions including energy production, muscle function, and sleep regulation. UK dietary surveys suggest many adults consume less than the recommended 300mg per day. Good sources include nuts, seeds, wholegrains, and leafy greens.

Key vitamins explained

Vitamin Main role Good food sources UK RDA (adults)
Vitamin A Vision, immune function, skin health Liver, dairy, carrots, sweet potato 700mcg (men) / 600mcg (women)
Vitamin C Immune support, collagen production, iron absorption Citrus fruit, peppers, broccoli, strawberries 40mg
Vitamin D Bone health, immune function, mood regulation Sunlight, oily fish, fortified foods 10mcg (400 IU)
Vitamin B12 Nerve function, red blood cell production Meat, fish, eggs, dairy, fortified plant milks 1.5mcg
Folate (B9) Cell division, DNA synthesis — critical in pregnancy Green leafy veg, beans, fortified cereals 200mcg (400mcg if pregnant)
Vitamin K Blood clotting, bone metabolism Green leafy veg, fermented foods 1mcg per kg body weight

RDA figures from NHS UK. Always check with your GP if you suspect a deficiency.

Key minerals explained

Mineral Main role Good food sources UK RDA (adults)
Calcium Bone and teeth strength, muscle contraction Dairy, fortified plant milks, broccoli, almonds 700mg
Iron Oxygen transport in blood, energy metabolism Red meat, lentils, spinach, fortified cereals 8.7mg (men) / 14.8mg (women)
Magnesium Energy production, muscle and nerve function, sleep Nuts, seeds, wholegrains, dark chocolate 300mg (men) / 270mg (women)
Zinc Immune function, wound healing, taste and smell Meat, shellfish, legumes, seeds 9.5mg (men) / 7mg (women)
Potassium Blood pressure regulation, heart and muscle function Bananas, potatoes, tomatoes, beans 3,500mg
Selenium Antioxidant defence, thyroid function Brazil nuts, fish, eggs, meat 75mcg (men) / 60mcg (women)

Source: NHS Vitamins and Minerals. Consult your GP before starting any supplement regimen.

"A varied diet is the best way to get the vitamins and minerals you need. But for many people in the UK, a nutritionally complete meal replacement can help bridge the gap." — NHS guidance on balanced eating

How Herbalife Formula 1 supports daily micronutrient intake

Herbalife Formula 1 is a nutritionally complete meal replacement shake that provides 21 vitamins and minerals per serving, including vitamin D, vitamin C, iron, calcium, magnesium, and zinc. It is designed to replace one or two meals per day as part of a calorie-controlled diet.

At approximately £1.19 per serving (from a 550g tub at £24.96), it is one of the most cost-effective ways to ensure a consistent micronutrient baseline — particularly useful for people with busy schedules, restricted diets, or inconsistent eating patterns.

It is not a substitute for a varied diet, and it does not replace medical advice. But as a daily nutritional foundation, it covers the most common UK shortfalls in a single serving. See the full Formula 1 guide for flavours, serving suggestions, and current prices.

Practical tips for improving your micronutrient intake

  1. Eat a wide variety of colours. Different coloured vegetables and fruits contain different micronutrients. Aim for at least five portions per day across a range of colours.
  2. Do not overcook vegetables. Water-soluble vitamins like vitamin C and B vitamins are destroyed by prolonged heat. Steam or lightly stir-fry where possible.
  3. Pair iron-rich foods with vitamin C. Vitamin C significantly improves the absorption of non-haem (plant-based) iron. Add lemon juice to lentil dishes or eat peppers alongside spinach.
  4. Consider a vitamin D supplement from October to March. The NHS recommends this for everyone in the UK during winter months when sunlight is insufficient.
  5. Use a nutritionally complete meal as a daily baseline. A Formula 1 shake provides a consistent micronutrient foundation without requiring you to track every food you eat.

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Frequently asked questions

What is the difference between vitamins and minerals?

Vitamins are organic compounds made by plants or animals; minerals are inorganic elements found in soil and water. Both are essential micronutrients your body needs in small amounts. Vitamins can be destroyed by heat or light; minerals are more stable. Both must come from your diet or supplementation as your body cannot produce sufficient quantities on its own.

Which vitamins and minerals are most commonly deficient in the UK?

The most common deficiencies in the UK are vitamin D (particularly in winter), iron (especially in women of childbearing age), vitamin B12 (particularly in people following plant-based diets), and magnesium. The NHS recommends everyone consider a vitamin D supplement from October to March.

Does Herbalife Formula 1 contain vitamins and minerals?

Yes. Formula 1 provides 21 vitamins and minerals per serving, including vitamin D, vitamin C, calcium, iron, magnesium, and zinc. It is designed as a nutritionally complete meal replacement and is one of the most cost-effective ways to maintain a consistent micronutrient baseline. See the full Formula 1 guide for details.

Should I take a multivitamin if I use Formula 1?

Formula 1 already provides a broad range of micronutrients. Whether you need additional supplementation depends on your individual diet, health status, and any specific deficiencies identified by your GP. Always consult a healthcare professional before adding supplements to your routine.

How do I know if I have a vitamin or mineral deficiency?

Common symptoms include persistent fatigue, poor immunity, brittle nails, hair loss, muscle cramps, and low mood — but these can have many causes. The only reliable way to confirm a deficiency is a blood test from your GP. Do not self-diagnose or self-treat without professional guidance.

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