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The use of a dihydrochalcone-rich polyphenolic fraction in the cosmetic treatment of mammals in order to limit the weight, to improve the aesthetic appearance of the body, and to treat certain non-pathological forms of obesity. The use of a dietary or nutraceutical composition based on this phenolic

The use of a dihydrochalcone-rich polyphenolic fraction in the cosmetic treatment of mammals in order to limit the weight, to improve the aesthetic appearance of the body, and to treat certain non-pathological forms of obesity. The use of a dietary or nutraceutical composition based on this phenolic fraction. A composition based on this polyphenolic fraction for use as a medicinal product in the prevention of diabetes.

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1. A method for the treatment of a mammal to limit its weight and improve the aesthetic appearance of its body thereof, comprising internally administering a dietary or nutraceutical composition to the mammal in amounts effective to control the sugar uptake by the body, said composition comprising a

1. A method for the treatment of a mammal to limit its weight and improve the aesthetic appearance of its body thereof, comprising internally administering a dietary or nutraceutical composition to the mammal in amounts effective to control the sugar uptake by the body, said composition comprising a dihydrochalcone-rich polyphenolic fraction where the fraction is obtained from fruit of the Rosacea family and comprises at least 10% by weight of polyphenols, and at least 10% by weight of the total polyphenols is phloridzin. 2. The method of claim 1 where the mammal suffers from a non-pathological form of obesity. 3. The method of claim 1 where from 10% to 70% by weight of the total polyphenols is phloridzin. 4. The method of claim 1 where the fraction also comprises chlorogenic acid and the weight ratio of phloridzin to chlorogenic acid is greater than or equal to 1. 5. The method of claim 1 where the fraction also comprises epicatechin and the weight ratio of phloridzin to epicatechin is greater than 9. 6. The method of claim 1 where the fraction further comprises minor amounts of procyanidin B2, quercitrin, quercetin, p-coumaric acid and other phenols. 7. The method of claim 1 where the fraction further comprises caffeic acid and the weight ratio of phloridzin to caffeic acid is greater than 4. 8. The method of claim 1 where the fraction further comprises caffeic acid, and less than 1% by weight of the total polyphenols is caffeic acid. 9. The method of claim 1 where the fraction further comprises phloretin. 10. The method of claim 1 where the fraction comprises phloridzin, phloretin, caffeic acid, chlorogenic acid, and p-coumaric acid; and the weight ratio of (phloridzin+phloretin) to (caffeic acid+chlorogenic acid+p-coumaric acid) is greater than or equal to 40%. 11. The method of claim 1 where the fraction is extracted from ripe apples. 12. The method of claim 1 where the fraction is extracted from Malus sylvestris Mill apples. 13. A method of claim 1 wherein the fraction contains more than 50% by weight of the total polyphenols in the fruit. 14. A method of claim 1 wherein at least 30% by weight of the total polyphenols is phloridzin. 15. The method of claim 14 wherein from 30% to 40% of the total polyphenols is phloridzin. 16. The method of claim 1 wherein the dietary or nutraceutical composition is in the form of a supplemental dietary product, a gel capsule or a beverage. 17. The method of claim 1 wherein at least a portion of the phloridzin is in the form of phloretin. 18. A method for the cosmetic treatment of a mammal to limit the weight and improve the aesthetic appearance of the body, thereof said method comprising:internally administering a dietary or nutraceutical composition to the mammal, said composition comprising a dihydrochalcone-rich polyphenolic fraction from the fruit of the Rosacea family;said fraction containing, by weight, more than 10% of total polyphenols, wherein at least 10% by weight of the polyphenols is phloridzin, wherein not more than 11% and preferably between 2% and 11% of the polyphenols is chlorogenic acid, wherein not more than 4% of the polyphenols is epicatechin, wherein not more than 2% of the polyphenols is procyanidin B2, wherein no more than 2% of the polyphenols is quercitrin, wherein not more than 2% of the polyphenols is quercetin, wherein not more than 0.5% of the polyphenols is p-coumaric acid, and wherein less than 0.5% of the polyphenols is caffeic acid. 19. The method of claim 18 wherein the fraction contains, by weight, more than 50% of the total polyphenols in the fruit. 20. The method of claim 18 wherein at least 30% by weight of the polyphenols is phloridzin. 21. The method of claim 18 wherein the dietary or nutraceutical composition is in the form of a supplemental dietary product, a gel capsule or a beverage. 22. The method of claim 18 wherein at least a portion of the phloridzin is in the form of phloretin. 23. The method of claim 18 wherein the fraction is extract ed from ripe apples. 24. The method of claim 18 wherein the fraction is extracted from Malus sylvestris Mill apples.