Thermic effect of food / Specific Dynamic Action (SDA)

Thermic effect of food / Specific Dynamic Action (SDA)

 
Energy requirement is affected by the type of food ingested. The extra heat which is produced after taking food is known as the specific dynamic action.

  • The stimulating effect of carbohydrates, fats and protein on energy metabolism is different.
  • Protein foods produce the highest per cent increase in energy metabolism.
  • The SDA of protein is about 30 per cent while carbohydrates and fats exert 6 per cent and 4 per cent respectively.
  • The average SDA of a mixed diet is about 8-10 per cent.
Thermic effect of food
Last modified: Saturday, 2 June 2012, 5:50 AM