Health Advice
- Weight Management
- Quit Smoking
- Acne
- Child Health
- Pain
- Oral Care & Hygiene
- Aneurysm, abdominal aortic
- Tummy ache
- Abscess
- Periods, absent
- First aid
- Reflux
- Blackheads
- Acupuncture
- Gallbladder, inflammation
- Leukaemia, acute lymphoblastic
- Leukaemia, acute myeloid
- Addiction
- Addison's disease
- Adenoids and adenoidectomy
- Frozen shoulder
- Agoraphobia
- Air embolism
- Alcohol misuse
- Alcohol poisoning
- Alexander technique
- Rhinitis, allergic
- Indoor allergy
- Mountain sickness
- Alzheimer's disease
- Lazy eye
- Macular degeneration
- Memory loss
- Amniocentesis
- Amputation
- Motor neurone disease
- Steroid misuse
- Iron deficiency anaemia
- Vitamin B12 or folate deficiency anaemia
- Anaesthesia
- Anal fissure
- Brain aneurysm
- Angelman syndrome
- Anger management
- Angina
- Angioedema
- Arteriography
- Stent insertion
- Dog bites
- Fractured ankle
- Ankylosing spondylitis
- Anorexia nervosa
- Smell sense, loss of
- Antacid medicines
- Penicillin
- Anticoagulant medicines
- Antidepressants
- Antifungal medicines
- Antihistamines
- NSAIDs
- Antisocial personality disorder
- Hypochondria
- Anxiety disorders in children
- Stress
- Appendicitis
- Wrist, broken
- Arterial thrombosis
- Arthritis
- Asbestosis
- Asthma
- Astigmatism
- Eczema
- Atrial fibrillation
- Hearing tests
- Bird flu
- B12 vitamin deficiency
- Skin rashes in babies
- Weaning
- Lumbago (low back pain)
- Septic arthritis
- Halitosis (bad breath)
- Weight loss surgery
- Barium enema
- Bartholin's cyst
- Pressure ulcers
- Bedbugs
- Nocturnal enuresis
- Behçet’s disease
- Facial paralysis
- Tongue pain or soreness
- Prostate enlargement
- Beta-blockers
- Bicarbonate test
- Binge eating
- Biopsy
- Bipolar disorder
- Spider bite
- Eye, black
- Bladder cancer
- Cystitis
- Bladder stones
- Blisters
- Blood donation
- Blood gases test
- Blood groups
- Coughing up blood
- Semen, bloody
- Urine, blood in the
- Vomiting blood
- Septicaemia
- Hypertension
- Low blood pressure
- Blood tests
- Blood transfusion
- Blushing
- Bromhidrosis (body odour)
- Bone cyst
- DXA scan
- Bone marrow donation
- Stem cell transplant
- Borderline personality disorder
- Bottle feeding
- Botulism
- Rectal cancer
- Polyps, bowel
- Leaky gut syndrome
- Orthodontics
- Brain abscess
- Head injury, severe
- Brain tumour, benign (non-cancerous)
- Brain tumour, malignant (cancerous)
- Brain tumours
- Breast abscess
- Breast cancer
- Male breast cancer
- Screening for breast cancer
- Nipple discharge
- Mastitis
- Breast lump
- Breastfeeding
- Shortness of breath
- Osteoporosis
- Fractured collarbone
- Hip fracture
- Leg, broken
- Fractured nose
- Rib injuries
- Toe, broken
- Tooth, broken or knocked out
- Smelly feet (bromodosis)
- Bronchitis
- Teeth grinding
- Thyroid eye disease
- Bulimia
- Burns and scalds
- Heart bypass
- Caesarean section
- Food poisoning
- Cancer
- Thrush
- Thrush, men
- Thrush, oral - adults
- Thrush, oral - babies
- Carbon monoxide poisoning
- Cardiovascular disease
- Cartilage damage
- Nasal congestion
- Rib, cervical
- Smear test
- Sore lips
- Chemotherapy
- Chest infection, adult
- Chest pain
- Herpes zoster virus
- Statins
- Kidney disease, chronic
- Leukaemia, chronic lymphocytic
- Leukaemia, chronic myeloid
- Cirrhosis
- Claustrophobia
- Cluster headaches
- White coated tongue
- Gluten intolerance
- Herpes simplex virus
- Cold
- Colic
- Colostomy
- Coma
- Combined contraceptive pill
- Pneumonia
- CT scan
- Concussion
- Hole in the heart
- Heart failure
- Conjunctivitis
- Constipation
- Contact dermatitis
- Corns and calluses
- Coronary heart disease
- Vegetative state
- Topical corticosteroids
- Steroid medication
- Cosmetic surgery
- Cough
- Counselling
- Leg cramps
- Crohn's disease
- Swallowing pills (problems)
- Undescended testicles
- Lacerations
- Cystic fibrosis
- Psoriatic arthritis
- Dandruff
- Date rape drugs
- Thyroiditis
- Hearing impairment
- Dehydration
- Tooth abscess
- Teething
- Tooth decay
- Fluoride
- False teeth (dentures)
- Depression
- Dyspraxia in children
- Diabetes insipidus
- Diabetes
- Diabetic ketoacidosis
- Diabetic retinopathy
- Dialysis
- Traveller's diarrhoea
- Nutrition
- Rectal examination
- Double vision
- Nummular eczema
- Shoulder dislocation
- Diverticular disease and diverticulitis
- Lightheadedness
- Down's syndrome
- Dry eye syndrome
- Thirst
- Dyslexia
- Periods, painful
- Indigestion
- Swallowing problems
- Dyspraxia (adults)
- Swimmer's ear
- Earache
- Earwax
- Eating disorders
- Ebola virus disease
- Ectopic pregnancy
- Restless legs syndrome
- Endoscopy
- Threadworms
- Tennis elbow
- Epidural
- Epilepsy
- Watering eyes
- Nosebleed
- Impotence
- Tremor (essential)
- Ocular cancer
- Eye injuries
- Red eye
- Falls
- Family planning
- Fever, childhood
- Fibromyalgia
- Flat feet
- Wind
- Seasonal flu
- Nail patella syndrome
- Food allergy
- Foot pain
- Frostbite
- Gallstones
- Stomach removal surgery
- Gastroenteritis
- Gastritis
- Gastroparesis
- Gastroscopy
- General anaesthetic
- Genetics
- Herpes, genital
- Warts, genital
- Rubella
- Gestational diabetes
- Gum disease
- Goitre
- Gout
- Recurrent limb pain in children
- Iron overload disorder
- Haemophilia
- Haemophilus influenzae type b
- Piles (haemorrhoids)
- Ingrown hairs
- Leukaemia, hairy cell
- Hallucinations
- Hamstring injury
- Hand pain
- Tendon repair, hand
- Hand, foot and mouth disease
- Hangover
- Seasonal allergic rhinitis
- Head and neck cancer
- Head injury, minor
- Nits
- Headaches
- Hearing and vision tests for children
- Myocardial infarction
- Heart block
- Palpitations
- Heart transplant
- Heart-lung transplant
- Heat exhaustion and heatstroke
- Sweat rash
- Periods, heavy
- Hepatitis A
- Hepatitis B
- Hepatitis C
- Hepatitis
- Herbal medicines
- Hernia, femoral
- Hiatus hernia
- Hernia, inguinal
- Hernia, umbilical
- Hernia
- Herpes simplex eye infections
- Hip pain in adults
- Hip replacement
- HIV and AIDS
- Welts
- Lymphoma, Hodgkin
- Homeopathy
- Hormone replacement therapy (HRT)
- Huntington's disease
- Rabies
- Hyperglycaemia
- Sweating, excessive (hyperhidrosis)
- Joint hypermobility
- Sleepiness in the day (severe and unexplained)
- Thyroid, overactive
- Hypnotherapy
- Testosterone deficiency (hypogonadism)
- Underactive thyroid
- Irritable bowel syndrome
- Painkillers, ibuprofen
- Shoulder tendon, trapped
- Urinary incontinence
- Infertility
- Inflammatory bowel disease
- Ingrown toenail
- Inquest
- Insomnia
- Type 1 diabetes
- Intensive care
- IVF
- Jaundice in newborns
- Jaundice
- Stings, sea creatures
- Jet lag
- Joint pain
- Kidney stones
- knee-pain
- Knee replacement
- Knee surgery, anterior cruciate ligament
- Milk intolerance
- Laryngeal (larynx) cancer
- Laryngitis
- Laxatives
- Legionnaires' disease
- Weil's disease
- Liver cancer
- Liver disease
- Liver transplant
- Local anaesthetic
- Twisted neck
- Tetanus
- Loss of libido
- Sperm count, low
- Lumbar puncture
- Swelling or lump
- Lung cancer
- Lung transplant
- Lyme disease
- Non-Hodgkin lymphoma
- Lymphoma
- Magnesium test
- MRI scan
- Malaria
- Male contraceptive pill
- Malnutrition
- Mastectomy
- Rubeola
- Shin splints
- Skin cancer (melanoma)
- Meningitis
- Menopause
- Metallic taste in mouth
- MRSA infection
- Migraine
- Miscarriage
- Mobile phone safety
- Moles
- Travel sickness
- Oral cancer
- Mouth ulcers
- Multiple sclerosis
- Mucositis
- Multiple system atrophy
- Mumps
- Muscular dystrophy
- Selective mutism
- Short-sightedness
- Nose and sinus cancer
- Polyps, nose
- Nasopharyngeal cancer
- Natural family planning
- Nausea and vomiting in pregnancy
- Peripheral neuropathy
- Night sweats
- Nightmares
- Rhinitis, non-allergic
- Type 2 diabetes
- Winter vomiting disease
- Obesity
- OCD (obsessive compulsive disorder)
- Sleep apnoea
- Occupational therapy
- Swollen ankles
- Oesophageal cancer
- Periods, irregular
- Organ donation
- Orthopaedics (orthopaedic surgery)
- Osteoarthritis
- Rickets
- Osteopathy
- Pacemaker implantation
- Shoulder pain
- Paracetamol
- Ulcerative colitis
- Pancreas transplant
- Pancreatic cancer
- Pancreatitis, acute
- Pancreatitis, chronic
- Panic disorder
- Pins and needles
- Paralysis
- Parkinson's disease
- Pelvic pain
- Ulcer, peptic
- Ruptured eardrum
- Pericarditis
- Periods
- Peripheral arterial disease
- Peritonitis
- Personality disorder
- Whooping cough
- Strep throat
- Phobias
- Physiotherapy
- Pilonidal sinus
- Plastic surgery
- Pleurisy
- Pneumococcal infections
- Poisoning
- Reflux in babies
- Potassium test
- Pre-eclampsia
- Slipped disc
- Urinary PSA test
- Prostate disease
- Prostatitis
- Psoriasis
- Puberty
- Radiation
- Radiotherapy
- Red blood cell count
- Rheumatic fever
- Rheumatoid arthritis
- Root canal treatment
- Roundworm
- Seasonal affective disorder (SAD)
- Salivary stones
- Salmonella infection
- Scabies
- Scarlet fever
- Scars
- Schizophrenia
- Sciatica
- Scoliosis
- Scurvy
- Self-harm
- Septic shock
- Sexual health clinics
- STIs
- Shingles
- Social anxiety disorder (social phobia)
- Vomiting in children and babies
- Sinus headache
- Sinusitis
- Skin rashes in children
- Sleep paralysis
- Sleepwalking
- Urine, smelly
- Snake bites
- Snoring
- Spina bifida
- Spinal muscular atrophy
- Sports injuries
- Sprains
- Squint
- Stuttering
- Stomach cancer
- Streptococcal infections
- Stroke
- Stye
- Suicide
- Sunburn
- Swollen glands
- Syphilis
- Tuberculosis (TB)
- Tension-type headaches
- Testicular cancer
- Testicular lumps and swellings
- Thyroid cancer
- Tics
- Tinnitus
- Tongue-tie
- Tonsillitis
- Toothache
- Total iron-binding capacity (TIBC or transferrin) test
- Total protein test
- Tourette's syndrome
- Toxic shock syndrome
- Traction
- Travel vaccines
- Trigger finger
- Typhoid fever
- Ultrasound scan
- Urinary tract infection, children
- Urinary tract infection
- Vaginitis
- Vaginal cancer
- Vaginal discharge
- Varicose eczema
- Varicose veins
- Warts and verrucas
- Vertigo
- Vitamins, minerals and supplements
- Vomiting in adults
- Warfarin
- Weight loss (unexpected and unplanned)
- Whiplash
- Wisdom tooth removal
- X-ray
- Yellow fever
- Bowel cancer screening
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Read moreNHS Choices - Introduction
(26/02/2015)
Vitamins and minerals are essential nutrients your body needs in small amounts to work properly.
Most people should get all the nutrients they need by eating a varied and balanced diet.
The pages in this section contain advice and information on vitamins, minerals and trace elements essential for health, including:
- what they do
- how much you need
- what happens if you have too much
- safety advice about supplements
For information about nutrition for children, see vitamins for children.
Vitamin and mineral supplements
If you choose to take vitamin and mineral supplements, be aware that taking too many or for too long can cause harmful effects.
Some people may need to take vitamin and mineral supplements. For information on who could benefit from supplements, see Do I need vitamin supplements?
If you're trying to cut down on your salt intake, you might want to avoid vitamin and mineral supplements that come as effervescent or fizzy tablets, as they can contain up to 1g of salt per tablet.
Get more tips for a lower-salt diet.
What are vitamins?
There are two types of vitamins: fat-soluble and water-soluble.
Fat-soluble vitamins
Fat-soluble vitamins are found mainly in fatty foods and animal products, such as vegetable oils, milk and dairy foods, eggs, liver, oily fish and butter.
While your body needs these vitamins every day to work properly, you don't need to eat foods containing them every day.
This is because your body stores these vitamins in your liver and fatty tissues for future use. These stores can build up so they are there when you need them. However, if you have much more than you need, fat-soluble vitamins can be harmful.
Fat-soluble vitamins are:
Water-soluble vitamins
Water-soluble vitamins are not stored in the body, so you need to have them more frequently.
If you have more than you need, your body gets rid of the extra vitamins when you urinate. As the body does not store water-soluble vitamins, these vitamins are generally not harmful. However, this doesn't mean that all large amounts are necessarily harmless.
Water-soluble vitamins are found in a wide range of foods, including fruit, vegetables, potatoes, grains, milk and dairy foods. Unlike fat-soluble vitamins, they can be destroyed by heat or being exposed to the air. They can also be lost in water used for cooking.
This means that by cooking foods, especially boiling them, we lose some of these vitamins. The best way to keep as many of the water-soluble vitamins as possible is to steam or grill foods, rather than boil them, or to use the cooking water in soups or stews rather than pouring it away.
Water-soluble vitamins are vitamin C, the B vitamins and folic acid.
There are also many other types of vitamins and minerals that are an important part of a healthy diet.
What are minerals?
Minerals are necessary for three main reasons:
- building strong bones and teeth
- controlling body fluids inside and outside cells
- turning the food you eat into energy
Minerals are found in foods such as meat, cereals (including cereal products such as bread), fish, milk and dairy foods, vegetables, fruit (especially dried fruit) and nuts.
Essential minerals include calcium and iron, although there are also many other types of minerals that are an important part of a healthy diet.
What are trace elements?
Trace elements are also essential nutrients that your body needs to work properly, but in much smaller amounts than vitamins and minerals.
Trace elements are found in small amounts in a variety of foods such as meat, fish, cereals, milk and dairy foods, vegetables and nuts.