Spent coffee grounds are natural source of antioxidant insoluble dietary fibre, proteins, essential amino acids and low glycaemic sugars. The roasting process at 160 ◦C followed by 4 M NaOH extractions at 20 ◦C, 60 ◦C, and 120 ◦C applied to SCG improves the extractability of galactomannans. SCG (4% w/w) can be used directly as food ingredient in solid foods such as biscuits. These food formulations might be destined to people with reduced energetic intake and particular requirements and a value-added opportunity for coffee by-products.