What Are the Side Effects of SlimQuick?

It sure would be nice to lose vast amounts of weight by simply popping a pill, but, unfortunately, it's never that easy. SlimQuick, a weight-loss supplement specifically designed for women, claims that it can help you lose weight by increasing your metabolism, boosting your energy, reducing fluid retention and controlling your appetite. While SlimQuick may help you lose some weight, it might not last, and some of the ingredients in the supplement can cause unpleasant side effects, such as insomnia, anxiety, nausea, headaches and gastric upset.

The caffeine in SlimQuick may cause headaches. Credit: Hemera Technologies/AbleStock.com/Getty Images

The SlimQuick Plan

SlimQuick is an herbal weight loss supplement for women. Green tea and caffeine are the primary weight loss ingredients. However, while some research shows that the combination of green tea and caffeine may increase metabolism and help burn fat, the effect on weight loss is minimal, according to a 2012 review study published in the Cochrane Database of Systematic Reviews.

The supplement also contains a number of other ingredients, including iodine, L-tyrosine, capsicum, rhodiola extract and turmeric. While the makers of SlimQuick claim that it can help you lose weight fast, the plan also recommends a reduced-calorie diet and exercise program. The diet plan offers meal suggestions for seven days and limits calories to about 1,500 per day. SlimQuick also offers a seven-day exercise plan with examples of both cardio and strength-training exercises.

Side Effects of Caffeine

One serving, which is three caplets, contains 100 milligrams of caffeine, about the same amount in a cup of coffee. If you're sensitive to caffeine, SlimQuick may make you feel jittery, anxious or restless. It also may also interrupt your sleep.

The American Medical Association says moderate amounts of caffeine are safe, up to 400 milligrams a day. But if you continue to drink your usual coffee, tea and other caffeinated items while taking SlimQuick, you may end up getting too much. For women, excessive caffeine in the diet may cause painful, lumpy breasts or limit calcium absorption and affect bone health. It can also increase blood pressure, cause an irregular heart rate or chronic headaches.

Caution With Green Tea Extract

Green tea is considered safe, but people with heart, kidney or liver problems should be cautious about using products that contain the herb, according to the University of Maryland Medical Center.

Although toxicity is extremely rare, case studies have linked diet pills with green tea extract to acute liver injury in healthy people. The high concentration of catechins in the extract may be the cause, according to the National Institute of Diabetes and Digestive and Kidney Diseases. Recovery is quick once you stop taking the green tea extract.

Green tea also interacts with a number of medications, including blood pressure pills, blood thinners, anti-anxiety meds and birth control, and it may increase or decrease their effectiveness.

Other Potential Side Effects

You may also experience side effects from some of the other ingredients in SlimQuick; iodine and the amino acid L-tyrosine may affect thyroid hormonem, which is responsible for regulating metabolism. You should not take supplements that contain these two ingredients if you have decreased or increased thyroid hormone levels, also known as hypothyroidism and hyperthyroidism. Guggulsterone, an ingredient from a medicinal plant believed to promote weight loss, may cause nausea, diarrhea, headaches or rash. Rhodiola, which is added to boost energy, may make you feel dizzy or cause dry mouth.

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