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Are you currently considering trying One A Day Weight Smart Advanced weight loss pills, which contain green tea, cayenne, and guarana? 

First off, some general reminders about over-the-counter weight loss supplements in general:

  • There is no such thing as an easy-fix weight loss solution. Any products that claims to enable you to lose significant amounts of weight without any effort, and without changing your dietary and exercise habits, is selling you a fairy tale. 
  • Even prescription weight loss pills, which go through a much more rigid testing process than the OTC products you may be considering, don't achieve magical results!
  • Most weight loss pills contain ingredients that have some potential to help you lose weight, but that doesn't mean they contain enough of the active ingredients to actually help you lose much weight. 
  • Claims that products were clinically tested do not in any way mean that the research conducted was unbiased or well-designed. 

Now you've got that, we can look at some of the ingredients that are found in the One A Day Weight Smart pills. 

Green Tea

Green tea is a popular weight loss product at the moment. Does it work? One study found that indeed green tea has the ability to help you shed some pounds, but also that you need to consume seven cups a day — or, presumably, the equivalent in capsules. 


Cayenne pepper can, research confirms, contribute to weight loss. This is especially true in people who aren't already habitual users of cayenne in their food. The spice can both suppress appetite and speed up the rate at which you burn calories. This is a promising weight-loss ingredient. 


Guarana is a powerful stimulant, containing more caffeine than coffee does. It's without a doubt able to keep you awake longer, which is why it is such a potent ingredient in energy drinks, and there is some evidence that it also induces weight loss. However, evidence is inconclusive at this stage. 

What Does That Mean For One A Day Weight Smart?

One A Day Weight Smart supplements contain ingredients that may well help people lose weight — to a limited extent of course. That doesn't mean you'll actually be able to take them though. A great many over the counter weight loss supplements are known to come with potential side effects. Not only is One A Day Weight Smart not exception, it is actually notorious for its heavy side effects. 

Weight Smart's Amazon reviews, and discussions right here on SteadyHealth, are quite literally filled with comments of people who said that they had to discontinue the supplements because they made users feel nauseous, sometimes to the point of vomiting. Lightheadedness was another frequently reported side effect, and some people even report experiencing nightmares while taking the supplements. 

Some (former) users are helpful enough to note that taking Weight Smart with food reduces the risk of nausea. If you can stomach Weight Smart, it just may help you see some results — going only by the ingredients, which do all have the potential to cause weight loss. 

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