Through the dry period to early lactation the cow goes through a dramatic change in her metabolism. To supply the high energy requirement in early lactation fat supply from the diet and body mobilisation increases substantially. As a result, the liver accumulates fat, the rate of detoxification slows down, ammonia accumulates and there’s a reduced supply of fat, glucose and protein to the udder. This trial was designed to evaluate the response of dairy cows to product called ABN-LiFT a proprietary mixture of B-group vitamins and methyl group donors (rumen protected choline, niacin, vitamin B12, biotin, folic acid and thiamine) designed to reduce the accumulation of triglycerides in the liver and accelerate VLDL export.