Conditions

Potential Abnormality of Glucose Tolerance Appetitive Behavior

Keywords

blood glucosespaghettiglycemic indexglycemic load

Outcome Measures

Primary Outcomes (1)

Capillary blood glucose responses
Clinically useful change in blood glucose, defined as the restoration of glucose within normal limits during the 2hr glucose tolerance test
2 hours

Secondary Outcomes (3)

Salivary insulin responses
2 hours
Subjective appetite ratings
2 hours
Blood pressure
2 hours

Study Arms (5)

Glucose as reference food

EXPERIMENTAL

Fourteen healthy, normal body weight adults (male: 6, female: 10) after 12hr fast, consumed 50g available carbohydrates from D-glucose, tested two times, in different visits as reference food; and 50g available carbohydrates from white bread, tested two times; and 50 gr available carbohydrates from spaghetti No7 types, regular, whole wheat and low carbohydrates - high fibre, tested once, in different visits, along with 300mL water. There was a washout period of at least two days between visits. Fingertip capillary blood glucose and salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose and salivary insulin sample was taken exactly 15min after the first bite of food or drink.

Other: Glucose as reference foodOther: White breadOther: Regular spaghettiOther: Whole wheat spaghettiOther: High fibre - low carbohydrates spaghetti

White bread

EXPERIMENTAL

Fourteen healthy, normal body weight adults (male: 6, female: 10) after 12hr fast, consumed 50g available carbohydrates from D-glucose, tested two times, in different visits as reference food; and 50g available carbohydrates from white bread, tested two times; and 50 gr available carbohydrates from spaghetti No7 types, regular, whole wheat and low carbohydrates - high fibre, tested once, in different visits, along with 300mL water. There was a washout period of at least two days between visits. Fingertip capillary blood glucose and salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose and salivary insulin sample was taken exactly 15min after the first bite of food or drink.

Other: Glucose as reference foodOther: White breadOther: Regular spaghettiOther: Whole wheat spaghettiOther: High fibre - low carbohydrates spaghetti

Regular spaghetti No 7

EXPERIMENTAL

Fourteen healthy, normal body weight adults (male: 6, female: 10) after 12hr fast, consumed 50g available carbohydrates from D-glucose, tested two times, in different visits as reference food; and 50g available carbohydrates from white bread, tested two times; and 50 gr available carbohydrates from spaghetti No7 types, regular, whole wheat and low carbohydrates - high fibre, tested once, in different visits, along with 300mL water. There was a washout period of at least two days between visits. Fingertip capillary blood glucose and salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose and salivary insulin sample was taken exactly 15min after the first bite of food or drink.

Other: Glucose as reference foodOther: White breadOther: Regular spaghettiOther: Whole wheat spaghettiOther: High fibre - low carbohydrates spaghetti

Whole wheat spaghetti

EXPERIMENTAL

Fourteen healthy, normal body weight adults (male: 6, female: 10) after 12hr fast, consumed 50g available carbohydrates from D-glucose, tested two times, in different visits as reference food; and 50g available carbohydrates from white bread, tested two times; and 50 gr available carbohydrates from spaghetti No7 types, regular, whole wheat and low carbohydrates - high fibre, tested once, in different visits, along with 300mL water. There was a washout period of at least two days between visits. Fingertip capillary blood glucose and salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose and salivary insulin sample was taken exactly 15min after the first bite of food or drink.

Other: Glucose as reference foodOther: White breadOther: Regular spaghettiOther: Whole wheat spaghettiOther: High fibre - low carbohydrates spaghetti

High fiber - low carbohydrate spaghetti

EXPERIMENTAL

Fourteen healthy, normal body weight adults (male: 6, female: 10) after 12hr fast, consumed 50g available carbohydrates from D-glucose, tested two times, in different visits as reference food; and 50g available carbohydrates from white bread, tested two times; and 50 gr available carbohydrates from spaghetti No7 types, regular, whole wheat and low carbohydrates - high fibre, tested once, in different visits, along with 300mL water. There was a washout period of at least two days between visits. Fingertip capillary blood glucose and salivary insulin samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose and salivary insulin sample was taken exactly 15min after the first bite of food or drink.

Other: Glucose as reference foodOther: White breadOther: Regular spaghettiOther: Whole wheat spaghettiOther: High fibre - low carbohydrates spaghetti

Interventions

Glucose as reference foodOTHER

Fourteen healthy, normal weight subjects after 10-14 hours fast, consumed 50g glucose diluted in 300ml water, tested two times, in different visits, within 5-10 min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120 min.