What you should eat before and after you exercise to lose weight, according to a celebrity trainer

Many dieters only use the white when they're cooking with eggs because the yolk is fattier, but Bateman advises eating whole eggs before a workout.

"Throwing away the yolk is a big no no," he said. "It's packed full of essential nutrients." Like Vitamin D, which can help promote weight loss, some studies have shown.

Many people may associate protein supplements with weight gain, but Bateman says whey protein can help your body repair after a tiring workout.

"Liquid whey protein is ideal post-workout because it is digested quickly," he said. "Whey supports protein synthesis and tissue repair."

It's also good for gaining muscle, if you're aiming to tone as you lose weight.

"Salmon is one of the best things to eat," Bateman said, especially if you want to stay lean and healthy.

Whether you eat it grilled, baked, or smoked, the oily fish is a rich source of protein and Omega-3 fatty acids, which help protect the body's cell membranes and keep disease at bay.

To go with your salmon, make sure you eat plenty of green vegetables like kale, broccoli, and spinach.

"Dark green leafy vegetables are, calorie for calorie, probably the most concentrated source of nutrition of any food," Bateman said.

They're also high in minerals and packed with enzymes, which the trainer says are "primed to help you lose fat and feel great."