<human>: ...however I have some concerns. (Forgive me if this isn't the correct sub to be asking)

My family is partaking in this diet they like to call the "Underwear Diet", which came from [this Buisness Insider article] 

Initially I was all for it, but I started thinking about how little we would be eating so I voiced my concern, which they didn't want to hear. So I decided to read the article itself (they just sent us a screenshot of what the diet consisted of). Upon reading the article, I found out a couple of things my parents had neglected to tell us 

* Each diet was unique to each person and created by a nutritionist. The list in the article was what the diet consisted of for one of the males (David Moritz).

* The people in the article had spent the previous 4-months doing rigorous exercising before starting the diet.

* There are no before/after pictures. The only one close is a two-year old photo of Moritz.

Regardless, my concerns fell on deaf ears and we started today. At around 4:30 PM, I started feeling lightheaded and dizzy until I ate my 3rd meal (the chicken and avacado). I'm fairly certain this was just my body not being used to the diet, but I didn't want to take that chance and am looking for advice here. Should we continue? Will this diet even work? What are y'alls thoughts?

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Provide a brief overview of the text.
<bot>: Family wants to lose a few pounds using this diet, I have some concerns and would like to know if this diet will work for us.