Victoria's Secret Trainer Reveals Which Diet Actually Works — and One That Doesn't

Celebrity trainer Justin Gelband revealed his top diet for reaching and maintaining your goal weight, plus what you should really avoid.

The New York-based trainer works with some of the biggest Victoria's Secret models to ever wear wings, including Candice Swanepoel, Miranda Kerr, Karlie Kloss, Irina Shaik and Martha Hunt.

Though exercise is his expertise, Gelband insists that “85 percent of what you do is what you eat,” he told Business Insider UK.

His diet of choice for the ladies is the Paleo diet, also known as the ‘caveman’ diet, which follows a high fat, low-carb structure. The lifestyle is adopted by eating foods that were around in the stone-age, like fruit, vegetables lean meat and nuts.

Noticeably absent from the Paleo diet is dairy, grains and processed foods. Eating like a cave person also limits your alcohol consumption to distilled liqueurs only.

The celebrity trainer is also vocal about the one eating habit he’s especially critical of: juice-only diets.

“At Fashion Week, some models went on a juice diet and didn’t tell me,” Gelband said. “Not one lost weight, some actually gained weight. That got me in big trouble.”

Because a liquid diet dramatically limits your calorie intake, your body is more likely to store the calories it does ingest as energy for later. This seemingly smart cleansing method also comes with a variety of potential healthy issues ranging from tooth decay, diabetes, migraines and fainting spells.

"There's a time and place for juice fasting — just not for weight loss," Gelband said of the popular method. "If you're on a yoga retreat in Bali, you're meditating and doing yoga and you want to drink juices because you don't want any heavy foods in your body, that's fine.”

But for a healthy lifestyle, Gelband and other nutrition experts agree that real, clean foods are the key. And though his main job is toning the models through fitness, the trainer says he “makes them eat. Food is key to energy,” Gelband said. “They’re not bean poles.”

Photo credit: Getty / Charles Eshleman