http://www.florastrongheart.co.za/flora/default.aspx | The Flora 21 day cholesterol lowering challenge has been proven to work time and time again. By following this healthy eating plan and exercise schedule over a 21 day period, you too can make a significant difference to your cholesterol levels. Flora Pro-activ forms an important part of this healthy eating plan and as little as 2.5g a day has been proven to lower cholesterol levels by up to 15%.