Table 2 Corrected Item-Total Correlation of the Inventory

Behavioral beliefs

Substituting solid cooking oil with liquid oils (such as canola or olive) has no significant effects on maintaining my health.

0.40

Consuming high-fat dairy products (such as milk, yoghurt, and cheese) helps maintain my health.

0.59

Consuming mayonnaise sauce is beneficial to my health.

0.52

Outcome evaluation

Controlling my blood sugar is the most important thing for me.

0.60

Preventing nighttime blood sugar decline is really vital to me.

0.58

Enhancing the resistance of my body to infections and diseases is of great importance for me.

0.70

Postponing the complications of diabetes mellitus is of great importance for me

0.65

Maintaining my health is the most important thing for me.

0.73

Decreasing the risk for developing the complications of diabetes mellitus is very important for me.

0.71

Preventing cardiovascular diseases is very important for me.

0.81

Normative beliefs

My family members and significant others nod their heads in agreement when I drink soft drinks and processed juices.

0.65

My family members and significant others disagree with me in using liquid cooking oil (such as canola or olive) instead of solid oil

0.72

My family members and significant others nod their heads in agreement when I consume fried and high-fat foods.

0.77

My family members and significant others disagree with me in separating fat from red meat and chicken from its skin.

0.80

My family members and significant others disagree with consuming low-fat dairy products.

0.74

My family members and significant others express their disagreement when I use lemon juice, vegetables, and low-fat yoghurt instead of sauce.

.0.67

My family members and significant others approve me when I use packed processed juices.

0.67

Motivation to comply

I care about the opinion of my family members and significant about consuming low-fat dairy products is important for me.

0.40

I tend to follow the opinion of my family members and significant others about the type of oil to consume.

0.40

The opinion of my family members and significant others opinion about consuming fried and high-fat foods is important for me.

0.37

I tend to follow the opinion of my family members and significant others about fish consumption.

0.39

I wouldn’t consume simmered foods if my family members and significant others do not like them.

0.32

I tend to follow the opinion of my family members and significant others about the consumption of fruits, vegetables, and grains.

0.38

Intention

In the next month, I intend to eat three main meals a day as recommended by my doctor.

0.39

In the next month, I intend to eat three snacks a day as recommended by my doctor

0.31

In the next month, I intend to eat main meals and snacks at predetermined times as recommended by my doctor.

0.67

In the next month, I intend to eat a diversified diet and all food groups as recommended by my doctor.

0.55

Dietary behaviors

I eat low-salt foods.

0.63

For cooking foods, I use liquid oil (canola or olive) instead of solid oil.

0.54

I avoid consuming fried and high-fat foods.

0.41

Before cooking, I separate fats from white and red meats.

0.32

I use low-fat dairy products.

0.31

I avoid consuming packed processed juices.

0.32