According to the official Source Naturals website, the suggested use is to take 1 to 2 tablets 30 minutes prior to breakfast and 1 tablet 30 minutes before lunch. No more than 3 tablets should be consumed in a 24 hour period. This product was also designed to be used in conjunction with the Diet-Phen Weight Loss Plan. That being said, no information about this plan could be found on the website at the time that this review was created.
The active ingredients in this product include: Chromium, St. John’s Wort, Hypericins, L-Phenylalanine, Guarana, Acetyl L-Carnitine HCl, Green Tea, Yerba Mate, Lipoic Acid, Ginger Root, Resveratrol.
An important aspect to note about this weight loss supplement is that it contains wheat, and should be avoided by anyone who has a wheat allergy. Furthermore, users are also cautioned not to take this supplement before bedtime. Although the manufacturer does not state why, one look at the list of ingredients makes the reason pretty clear: it contains both stimulants and St. John’s Wort.
Diet-Phen contains both caffeine and other substances containing caffeine (ex. guarana, green tea and yerba mate) as well as L-Phenylalanine, which has a stimulant effect on the brain and enhances the effects of caffeine. Unwanted side effects associated with caffeine include: insomnia, restlessness, mood changes, upset stomach, headache, irritability, racing heartbeat, heart palpitations, anxiety, jitters, etc.
In addition to these side effects, be advised that St. John’s Wort is also known for producing adverse effects in some people, such as restlessness, anxiety, stomach upset, vivid dreams, dizziness, headache, skin rash, tingling, etc.
As for additional precautions, users are instructed to avoid drinking alcohol when taking Diet-Phen. It is also not meant for long-term use or to be used by those who are “under medical supervision”. Since this is the case, it is strongly recommended that you first speak with your healthcare provider if you have an existing medical condition or are currently taking any medications (prescription and/or non-prescription) or other supplements.
When this review was written, a single bottle of Diet-Phen (180 capsules) cost $20.34 on Amazon.