Saturday, January 05, 2008

Antique chemistry text sheds light on Lugol's solution shelf-life issue (thanks, Google Books!)

"Iodine is slightly soluble in water, one part of the element requiring about 3700 parts of water to dissolve it, forming a yellowish solution, which, on exposure to light, decolorizes with formation of hydriodic acid. The solubility of iodine in water is much increased by the presence of potassium iodide or hydriodic acid. The official Liquor lodi Compositus, U.S.P. (Lugol's Solution), is a preparation based on this property. In strong alcohol iodine is soluble to the extent of one part in ten of the solvent, forming a dark-brown liquid, which is stronger than the Tincture lodi, U.S.P., which contains 7 parts of iodine and 5 parts of potassium iodide in 100 of alcohol. ALCOHOLIC SOLUTION OF IODINE READILY UNDERGOES DECOMPOSITION UPON STANDING, THE LOSS IN FREE IODINE VARYING FROM 15 TO 25 PER CENT, IN ONE YEAR'S TIME OR EVEN LESS. THE IODINE IS CONVERTED INTO HYDRIODIC ACID AND ETHYL IODIDE. THIS DECOMPOSITION MAY BE PREVENTED BY THE PRESENCE OF POTASSIUM IODIDE AS DIRECTED IN THE U.S.P." [emphasis added]

from A Text-book of Chemistry: Intended for the Use of Pharmaceutical and Medical Students, p 177

Lugol's solution retailer recommends shaking it immediately before use

Alpha Omega Labs' web-page on Lugol's solution
indicates that it should be shaken well before using, which I gather is a precaution taken to put any iodine which has come out of solution back into solution, at least temporarily. I haven't seen such an instruction before, at least made so emphatically. I would suggest transferring some to a Target-brand eyedrop-bottle to eliminate the risk of breaking your bottle of Lugol's solution while shaking it. Just be certain to cover the original label so that nobody puts LS in one of their eyes before realizing what's in the bottle. It's unlikely that anyone would make this mistake, because the nozzle will become discolored by the LS, but better safe than sorry.

Friday, January 04, 2008

Links to articles of interest

(Also see links contained in The Iodine Deprivation Conspiracy, below.)

I haven't necessarily read these articles, but stumbled
onto them in the course of various iodine-related
searches, thought they looked interesting, and included
them here in no particular order.

A) The Critical Importance of Dietary Iodine by Mitchell A. Fleisher, MD

Iodine and Chelation: Heavy Metals and Halogens from International Medical Veritas Association

C) How to Use Iodoral in Weight Loss by Peter Kassner, NMD [Iodoral is essentially a dose of Lugol's solution in a tablet]

Gerson Institute home page

E) Validation of the orthoiodosupplementation program by Guy E. Abraham, M.D. and David Brownstein, M.D. (two of the top experts on iodine supplementation)

F) Iodide/Iodine by Lewis Ford

G) Iodine: Bring Back the Universal Nutrient Medicine from International Medical Veritas Association

H) Iodine and Chelation Heavy Metals and Halogens from International Medical Veritas Association

I) An Overlooked Contributor to Obesity? by Rachel Olivier, MS, ND, PhD

J) AntiAging & Aesthetics blog from Griffin Medical

K) Are You Iodine Deficient? by Brenda Skidmore

L) Supplement Strategy: Iodine from

M) The Vital Role of Iodine by Olin Idol, N.D., C.N.C.

N) Recent Advances in Iodine Nutrition by Michael Donaldson, PhD

O) Iodine Deficiency “An Epidemic in Progress” by Jerome E. Block, M.D. F.A.C.P.

P) Page of links to articles by Guy E. Abraham and associates

Q) The Importance of Inorganic Iodine by By Mitchell A. Fleisher, M.D.

Part 1 Part 2

R) The Usefulness of Iodine

S) Supplementing Safely with Iodine/Iodide

T) Breast Cancer Prevention and Iodine Supplementation (newsletter by Jeffery Dach, M.D.)

U) Iodine: Its Role In Health and Disease by Michael B. Schachter, M.D. ( This article mentions that iodine helps to prevent diabetes.)

V) Some good insights into how iodine helps to prevent cancer - Breast Cancer, Tamoxifen, Thyroid & Weight Loss