Blyth, Inc. reported net sales for the three months ended December 31, 2011 increased 23% to $365.0 million versus $296.9 million for the comparable prior year period primarily due to significant year-over-year sales growth at ViSalus. International sales represented 50% of fourth quarter sales this year compared to 53% last year. “We are very pleased with ViSalus’s strong performance during the fourth quarter, during which many weight management and fitness lifestyle compan...