1. why are essential proteins so important to a healthy diet? 2. how does the body use protein? 3. list at least three features shared by the various popular diet plans discussed in this section. name and describe a category of vegetarianism.

1. Why are essential proteins so important to a healthy diet?
Proteins are a “macronutrient” (just like carbohydrates and fat), which means that your body needs a large amount of them in order to stay healthy. A healthy diet requires a balance between the macronutrients and the “micronutrients” (such as vitamins and minerals, which the body needs in smaller amounts).

2. How does the body use protein?
The body uses proteins to: create and repair tissues; build enzymes, chemicals, and hormones; every cell in your body is in fact made up of proteins; and it is also the building block of bones, muscles, cartilage, skin, and blood.

3. List at least three features shared by the various popular diet plans discussed in this section.
Since I don’t know which diet plans you’ve discussed, I’ll just list some the most common features that most healthy diet plans have in common: a good balance of nutrients, prefer organic food rather than ready/frozen food filled with chemicals and preservatives, and add a healthy lifestyle.

4. Name and describe a category of vegetarianism.
A branch of vegetarianism is Veganism. A vegan does not eat any products that derive from animals, for example: milk, cheese, butter, eggs, etc. as a step forward to vegetarianism which simply cuts meat and fish out of the diet. Vegans though need to replace those nutrients from products that are organic a non-animal-derivate such as soy, for example.  

garcinia cambogia became popular worldwide after being featured on the dr. oz show in 2012.

it is a small, green fruit, shaped like a pumpkin.

the skin of the fruit contains hydroxycitric acid (hca). this is the active ingredient in garcinia cambogia extract, which is marketed as a diet pill.

how it works: animal studies show that it can inhibit a fat-producing enzyme in the body and increase levels of serotonin, potentially to reduce cravings (1, 2trusted source).

effectiveness: one study with 130 people compared garcinia against a dummy pill. there was no difference in weight or body fat percentage between groups.

a 2011 review that looked at 12 studies on garcinia cambogia found that, on average, it caused weight loss of about 2 pounds (0.88 kg) over several weeks.

side effects: there are no reports of serious side effects, but some reports of mild digestive problems.