Does It Work? Yes, Slimfast can work for weight loss. Structured programs, like this one, work for people who don't want to count calories. Studies show that people lose more weight when they eat portion-controlled meals or meal replacements.

SlimFast products are designed for people looking to lose weight quickly and conveniently. The products are low in calories and easy to take on the go, so they can be a good option for busy people who are looking to lose weight.

Big Narstie and Kelly Brook's Oomph For Boomph advert with Slimfast starts airing on TV on May 14. Got a story?

The social media and TV campaign is intended to highlight the nutritional benefits - including 23 vitamins and minerals and 14g of protein - of SlimFast's daily shake. However, experts warn of the dangers of attempting to rapidly lose weight with high street shakes that have not undergone 'vigorous' medical 'vetting'.

“SlimFast is terrible for you,” says certified nutritionist and a nutritional chef Melissa Eboli. “You'd be better off taking a scoop of sugar and adding it to water than drinking all of the chemical non-food, sugar-laden ingredients that make up SlimFast.”

You can remain on the SlimFast 3,2,1 Plan until you reach your target weight. However, you should never diet below a body mass index (BMI) of 18.5. SlimFast meal replacement products are formulated in line with National and European legislation to meet the highest nutritional standards.

A number of these studies show benefits in measured glycemic control. SlimFast is a safe and effective weight loss approach for those with Type 2 diabetes. Our delicious and nutritious products have as little as 1g of sugar, as much as 20g of protein, and clinical studies showing help in maintaining blood sugar levels.

SlimFast shakes, powders and meal bars are fortified with essential vitamins and minerals. This means they allow you to lower your calorie intake with reduced risk of nutrient deficiency. It's all sorted. SlimFast meal replacement products are formulated to comply with strict national and European standards.

Kelly Brook

That's the illusion that diet-food giants like SlimFast create, and while it's a compelling dream the cold hard truth is that the slimfast diet is neither healthy nor a long-term solution to weight loss.

Replace one meal a day with a scrumptious SlimFast shake or a crunchy, filling bar, and eat sensibly for the remaining two meals, while enjoying one or two of our 100-calories snacks or other low-fat snacks for a well-rounded daily diet to keep hunger at bay. Be sure to keep up your exercise regimen.

Backed by multiple clinical studies, the clinically proven SlimFast Plan* has been shown to be a suitable approach for diabetic weight loss.