Source Naturals Diet Phen Review

Editor's Review: 3.5 / 5.0

What You Should Know

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Diet Phen but Source Naturals is a weight loss supplement that claims to boost weight loss and mood. Natural mood boosters are not safe for all dieters. These ingredients can affect mood and the performance of prescription medications that also alter mood. Source Naturals does list all ingredients in the formula, one positive note. Unfortunately, there are no testimonials or clinical references to support claims of increased weight loss.

List of Ingredients

Sodium, Niacinamide, Vitamin B6, Calcium, Chromium, St. John’s Wort, L-Phenylalanine, Guarana Extract, Acetyl L-Carnitine, Green Tea Leaf Extract, Yerba Mate Extract, Lipoic Acid, Ginger Root and Resveratrol.

Product Features

There are a few ingredients in Source Naturals Diet Phen with proven positive effects on weight loss. Chromium may suppress appetite by controlling blood glucose levels. If blood glucose levels drop drastically, as is the case after eating high carbohydrate foods, hunger can result. Chromium helps stabilize these levels so the drop never occurs.

Green tea leaf is proven to boost metabolism, but only in the right amounts. Most studies use around 350 mg of green tea leaf. This supplement contains less than 150 mg. There is mention of caffeine content in the green tea, so this ingredient is likely included as a stimulant.

As for the ingredients without clinical proof, there are two stimulants, guarana and yerba mate. These stimulants will increase heart rate but they have not been proven to affect metabolism. There is only so much stimulation the body stand before the dieter feels jittery and nauseous. This supplement contains three strong stimulants.

St. John’s Wort and L-Phenylalanine boost mood. For some dieters, these ingredients may boost mood and help them stick with a weight loss diet, but there is a chance of negative side effects for other dieters. If a dieter has a history of mental illness like depression or anxiety, these ingredients should not be consumed. This is especially true of dieters with bipolar disorder.

Source Naturals Diet Phen sells for $9.98 per 45 tablets and $34.98 per 180 tablets. This price is lower than many other fat burners and weight loss supplements.

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  • The ingredients for Source Naturals Diet Phen are clearly listed.
  • The price is lower than comparable products.
  • Green tea is proven to boost metabolism.
  • Chromium may help control appetite.


  • Several stimulants packaged together in one supplement may cause jitters and nausea.
  • Few ingredients are proven to boost weight loss.
  • Not enough green tea for optimal effect.


Source Naturals Diet Phen is a combination of proven and unproven weight loss ingredients. Some ingredients carry the potential for negative side effects, which limits the number of dieters who can safely take the product. With proven and safe ingredient options, there is no sense in taking a chance with side effects.

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