Previous studies have shown that a low birth weight can result in health problems, such as diabetes and high BP.
But this latest study, presented at the ACC in Chicago, revealed that weight gain could be just as damaging to health.
Increases in systolic BP and arterial stiffness were seen from as early as the age of 10.
For the study, researchers took measurements of BMI, BP and arterial stiffness in 6,000 children aged 10 years.
They also the examined the children's weight records from early life, focusing on change in weight between birth and the first two months of life.
Faster weight gain in the first two months was linked to an increase in systolic BP by an average of 0.5mmHg, as well as arterial stiffness.
Lead researcher Dr Marietta Charakida, from University College London, said: 'It appears there is a window early in life where programming for later cardiovascular disease can occur.'
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