Get Free Shaker With Any Meritene Energis! And more Meritene Energy Supplements: Meritene Energis supplements gives you the nutritional and energy boost to help you throughout the day. Meritene supplements (previously known as Build-Up) is a flavoured mineral, protein, vitamin fortified drink mix with the added goodness of skimmed milk and vegetable oil. It is suitable to consume as a nutritious first-line supplement. Both Meritene soups and shakes are available.