The present invention generally relates to the field of nutrition. In particular the present invention relates to infant nutrition in the post natal period and in early life, more particular during the age period of 6-36 months or during a part thereof. One embodiment of the present invention is a kit of diet compositions for children during the age period of 6-36 months or during a part thereof, wherein the macronutrient content of the compositions is gradually changing in the form of a straight line from a composition that comprises about 40-50% energy from fat and about 40-49% energy from carbohydrates for children at the age of 6 months to a composition that comprises about 30-35% energy from fat and about 50-55% energy from carbohydrates for children at the age of 36 months, and its use to prevent obesity later in life. Another embodiment relates to a range of shelf-stable baby food products having an optimal energy profile for meeting the nutritional needs of an infant at a specific stage of infant development.本發明大體而言係關於營養學領域。特定言之，本發明係關於嬰兒在出生後期間及生命早期、更尤其在6-36月齡期間或其一部分期間的營養。本發明之一實施例為供兒童在6-36月齡期或其一部分期間用的膳食組合物套組，其中組合物之巨量營養含量以直線形式、由包含約40-50%來自脂肪之能量及約40-49%來自碳水化合物之能量供6月齡兒童用的組合物逐步變為包含約30-35%來自脂肪之能量及約50-55%來自碳水化合物之能量供36月齡兒童用的組合物；及其預防生命後期肥胖症的用途。另一實施例係關於存放穩定的嬰兒食品系列，其具有最佳能量分布以便滿足嬰兒在嬰兒發育之特定階段的營養需要。
