الفهرس 
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Abstract
Obesity is a chronic disease, which increase at an alarming rate and reached epidemic proportions all over the world. It becomes a major factor for many diseases e.g.: type 2-diabetes, hypertension, sleep apnea, stroke, cancer and cardiovascular diseases. Therefore, it is important to treat obesity. There are several ways for obesity treatment such as physical activity or using drugs or by surgery but the most effective and safe way is using natural products.
In this study, we the see the effect of some natural extracts on obesity treatment. Those natural extracts are spirulina platensis and green coffee.
This study is aim to demonstrate the effect of those extracts on body weight reduction.
So that the rats were divided into two groups: control group and high fat diet supplemented group then the HFD group is subdivide into four groups: untreated group, spirulina platensis treated group, green coffee treated group and combination group.
group 1 :( Control group):10 rats were fed free access to food and water during the whole period of the experiment.
group 2 :( High fat diet supplemented group: HFD):40 rats were supplemented with high fat diet.
Then high fat diet supplemented rats were subdivided into four groups as follow:
e- Untreated high fat diet:
10 rats were fed high fat diet for the whole period of the experiment.