Ouagadougou - The economy of Burkina Faso loses nearly FCA 409 billion (US$ 802 million) per year due to the effects of child under nutrition, according to a new study launched today in the capital by Mr François Lompo, Minister of Agriculture, Halieutic Resources, Sanitation and Food Security, representative of his Excellency, Lt Col Isaac Zida, Prime Minister of the transitional government of Burkina Faso.