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Safety evaluation of certain food additives - ipcs inchem

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STEVIOL GLYCOSIDES (addendum) 213<br />

shown some evidence <strong>of</strong> pharmacological effects in patients with hypertension or<br />

with type 2 diabetes at doses corresponding to about 12.5–25.0 mg/kg bw per day<br />

(5–10 mg/kg bw per day expressed as steviol).<br />

The results <strong>of</strong> the new studies presented to the Committee at its present<br />

meeting have shown no adverse effects <strong>of</strong> steviol glycosides when taken at doses<br />

<strong>of</strong> about 4 mg/kg bw per day, expressed as steviol, for up to 16 weeks by individuals<br />

with type 2 diabetes mellitus and individuals with normal or low-normal blood<br />

pressure for 4 weeks. The Committee concluded that the new data were sufficient<br />

to allow the additional safety factor <strong>of</strong> 2 and the temporary designation to be<br />

removed and established an ADI for steviol glycosides <strong>of</strong> 0–4 mg/kg bw expressed<br />

as steviol.<br />

The Committee noted that some estimates <strong>of</strong> high-percentile dietary<br />

exposure to steviol glycosides exceeded the ADI, particularly when assuming<br />

complete replacement <strong>of</strong> caloric sweeteners with steviol glycosides, but recognized<br />

that these estimates were highly conservative and that actual intakes were likely to<br />

be within the ADI range.<br />

6. REFERENCES<br />

Abudula, R., Jeppesen, P.B., Rolfsen, S.E.D., Xiao, J. & Hermansen, K. (2004) Rebaudioside<br />

A potently stimulates insulin secretion from isolated mouse islets: studies on the dose-,<br />

glucose-, and calcium dependency. Metabolism, 53(10), 1378–1381.<br />

Akashi, H. & Yokoyama, Y. (1975) [Security <strong>of</strong> dried-leaves extracts <strong>of</strong> stevia—report <strong>of</strong><br />

toxicological test.] Shokuhin Kogyo, 18, 34–43 (in Japanese).<br />

Alvarez, M., Bazzote, R.B., Godoy, G.L., Cury, R. & Botion, L.M. (1981) [Effects <strong>of</strong> aqueous<br />

extract <strong>of</strong> Stevia rebaudiana Bertoni on biochemical parameters <strong>of</strong> normal adult persons.]<br />

Arq. Biol. Tecnol., 24(1), 178 (Abstract No. H-35; in Portuguese).<br />

Aritajat, S., Kaweewat, K., Manosroi, J. & Manosroi, A. (2000) Dominant lethal test in rats<br />

treated with some plant extracts. Southeast Asian J. Trop. Med. Public Health, 31(Suppl. 1),<br />

171–173.<br />

Barriocanal, L., Palacios, M., Benitez, S., Canete, F., Jimenez, J.T., Jimenez, N. & Rojas, V.<br />

(2006) Lack <strong>of</strong> pharmacological effect <strong>of</strong> steviol glycosides as a sweetener in humans.<br />

Studies on repeated exposures in normotensive and hypotensive individuals and Type 1<br />

and Type 2 diabetes. Presented at the 2nd International Symposium on Stevia, November<br />

2006.<br />

Barriocanal, L., Palacios, M., Benitez, G., Benitez, S., Jimenez, J.T., Jimenez, N. & Rojas, V.<br />

(2008) Apparent lack <strong>of</strong> pharmacological effect <strong>of</strong> steviol glycosides used as sweeteners<br />

in humans. A pilot study <strong>of</strong> repeated exposures in some normotensive and hypotensive<br />

individuals and in Type 1 and Type 2 diabetics. Regul. Toxicol. Pharmacol., 51, 37–41.<br />

Bazargan, M., Gerber, J.P., Wang, J., Chitsaz, M., Milne, R.W. & Evans, A.M. (2007)<br />

Determination <strong>of</strong> isosteviol by LC-MS/MS and its application for <strong>evaluation</strong> <strong>of</strong><br />

pharmacokinetics <strong>of</strong> isosteviol in rat. DARU, 15, 146–150.<br />

Bazotte, R.B., Lonardoni, M.T.C., Alvarez, M., Gaeti, W.P. & Amado, C.A.B. (1986)<br />

[Determination <strong>of</strong> the lethal dose LD50 <strong>of</strong> isosteviol in laboratory animals.] Arq. Biol.<br />

Tecnol., 29, 711–722 (in Portuguese).<br />

Boeckh, E.M.A. & Humboldt, G. (1981) [Clinical <strong>evaluation</strong> <strong>of</strong> the chronic effects <strong>of</strong> the natural<br />

sweetener Stevia rebaudiana Bertoni on the glucose tolerance test, clinical parameters<br />

and electrocardiograms <strong>of</strong> normal individuals.] Cienc. Cult., 32(Suppl.), 208–210 (in<br />

Portuguese).

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