I know so many friends, especially ones with young kids, that have such a fear of sunlight. We need sun and it is my belief that children need to be in the sun, not coated with chemicals that are toxic and cause cancer! Yes sunscreen can cause cancer because we are lathering on chemicals that then cause oxidative damage to our DNA. The current medical thinking is that the most important reason we want to be in the sun is to increase our Vitamin D levels. Michael Holick MD a researcher at Boston University (an alma mata of mine) has a great presentation about Vitamin D and sunlight. Read the rest of this entry

J Toxicol Environ Health A. 2008;71(21):1415-29.
Splenda alters gut microflora and increases intestinal p-glycoprotein and cytochrome p-450 in male rats.Abou-Donia MB, El-Masry EM, Abdel-Rahman AA, McLendon RE, Schiffman SS.

Department of Pharmacology, Duke University Medical Center, Durham,
North Carolina 27708, USA. donia@duke.edu

Splenda is comprised of the high-potency artificial sweetener sucralose (1.1%) and the fillers maltodextrin and glucose. Splenda was administered by oral gavage at 100, 300, 500, or 1000 mg/kg to male Sprague-Dawley rats for 12-wk, during which fecal samples were collected weekly for bacterial analysis and measurement of fecal pH. After 12-wk, half of the animals from each treatment group were sacrificed to determine the intestinal expression of the membrane efflux transporter P-glycoprotein (P-gp) and the cytochrome P-450 (CYP) metabolism system by Western blot. The remaining animals were allowed to recover for anadditional 12-wk, and further assessments of fecal microflora, fecal pH,
and expression of P-gp and CYP were determined. At the end of the 12-wktreatment period, the numbers of total anaerobes, bifidobacteria,lactobacilli, Bacteroides, clostridia, and total aerobic bacteria were significantly decreased; however, there was no significant treatment effect on enterobacteria. Splenda also increased fecal pH and enhanced the expression of P-gp by 2.43-fold, CYP3A4 by 2.51-fold, and CYP2D1 by 3.49-fold. Following the 12-wk recovery period, only the total anaerobes
and bifidobacteria remained significantly depressed, whereas pH values, P-gp, and CYP3A4 and CYP2D1 remained elevated. These changes occurred at Splenda dosages that contained sucralose at 1.1-11 mg/kg (the US FDA Acceptable Daily Intake for sucralose is 5 mg/kg). Evidence indicates
that a 12-wk administration of Splenda exerted numerous adverse effects, including (1) reduction in beneficial fecal microflora, (2) increased fecal pH, and (3) enhanced expression levels of P-gp, CYP3A4, and CYP2D1, which are known to limit the bioavailability of orally administered drugs. Read the rest of this entry