If you suffer from PMT (Pre-Menstrual Tension, vitamins B5 and 6 help alleviate some of the pains, breast tenderness etc, Evening Primrose Oil helps calm mood swings, making it more bearable and tolerable for others, as well as yourself.

For teenagers with acne vitamin E is an anti-oxidant, and vitamin B6 helps prevent skin conditions. Foods that are also rich in these are: fish, bananas, pork, chicken, eggs, nuts and broccoli eating plenty of these will reduce the need for supplements, as they are absorbed in the body naturally.

A lot of vitamins are destroyed by alcohol and coffee, there are no poisoning effects in vitamins, as a lot of excess is passed through urine.

Vitamin B12 is a good supplement for vegans, as most of it is found in meat and dairy products.

Folic Acid is essential for pregnant women at least for the first three months and the elderly, it can be found in liver (although not advisable to be eaten by pregnant women), egg yolks, carrots and green vegetables.

Cod Liver Oil is good for the bones, and it's rich in vitamins A+D and Omega 3.

St. John's Wort is suitable for depression, but if you are on medication you must tell your Dr you are taking it, as it can counteract with other medicines. It has been banned in Ireland, you can only get it over there now on prescription.

We don't have the ability to make our own vitamin C so we can only get it through food and supplements, it's also known as Ascorbic Acid. Good sources of vitamin C are fruit juices, fruit such as oranges, potatoes and broccoli. Children as young as 3 months can take vitamin C supplements.

Iron is a vital vitamin, for red blood cells, lack of iron can lead to anaemia, it is especially essential for menstruating women, children, the elderly, vegans and pregnant women.

Aloe Vera is also good for acne and shiny hair; it is best taken in tablet form, as the liquid supplement tastes very bitter.

Calcium is a vital vitamin, for healthy teeth and bones; vegans can find it in tofu and some Soya milk.