Some groups of the population are at greater risk of not getting enough vitamin D and are advised to take a supplement every day of the year.

babies having 500mls (about a pint) or more of formula a day should not be given a vitamin D supplement, because infant formula is fortified with vitamin D and other nutrients Effervescent vitamin supplements or effervescent painkillers can contain up to 1g of salt per tablet. Consider changing to a non-effervescent tablet, particularly if you have been advised to reduce your salt intake. Most people do not need to take vitamin supplements and can get all the vitamins and minerals they need by eating a healthy, balanced diet. people who are not often exposed to the sun – such as people who are frail or housebound, are in an institution such as a care home, or usually wear clothes that cover most of their skin when outdoors should take a daily supplement containing 10 micrograms of vitamin D

From around late March or early April until the end of September, most people can get all the vitamin D they need through sunlight on their skin and from eating a balanced diet.

all children aged 1 to 4 years old should be given a daily supplement containing 10 micrograms of vitamin D Effervescence can also be observed when opening a bottle of champagne, beer or carbonated beverages such as some carbonated soft drinks. The visible bubbles are produced by the escape from solution of the dissolved gas (which itself is not visible while dissolved in the liquid). A GP may also recommend supplements if you need them for a medical condition. For example, you may be prescribed iron supplements to treat iron deficiency anaemia. Fizzy (effervescent) tablets: salt advice CaCO 3 + 2 HCl ⟶ CaCl 2 + H 2 O + CO 2 ↑ {\displaystyle {\ce {CaCO3 + 2 HCl -> CaCl2 + H2O + CO2 ( Effervescence is the escape of gas from an aqueous solution and the foaming or fizzing that results from that release. [1] The word effervescence is derived from the Latin verb fervere (to boil), preceded by the adverb ex. It has the same linguistic root as the word fermentation. [ citation needed]If you're pregnant, trying for a baby or could get pregnant, it's recommended that you take a 400 microgram folic acid supplement every day until you're 12 weeks pregnant. Folic acid supplements need to be taken before you get pregnant, so start taking them before you stop using contraception or if there's a chance you might get pregnant. For the sociological concept, see Collective effervescence. For the racehorse, see Effervescing (horse). For other uses of "fizz", see Fizz (disambiguation). Bubbles of carbon dioxide float to the surface of a carbonated soft drink. Because it's difficult for people to get enough vitamin D from food alone, everyone (including pregnant and breastfeeding women) should consider taking a daily supplement containing 10 micrograms of vitamin D during the autumn and winter.