Jennifer prioritises eating vegetables each mealtime. Notably leafy greens like spinach and kale. She also adds complex carbohydrates to meals. Some of her faves are sweet potatoes, brown rice, quinoa, rice bread, and porridge according to Romero and US Weekly.

Lo usually eats:

• Protein: mostly lean protein sources, such as egg whites, white meat turkey, chicken breast, pork, and grass-fed beef.
• Fish: mainly omega-3 fatty acid-rich fish, such as salmon and sea bass.
• Vegetables: leafy greens such as kale and spinach and cruciferous vegetables such as broccoli and cauliflower.

Lopez shared that her regimen includes lifting three to four days a week and she adds in cardio when she wants to get a bit leaner. In that case, Lopez will do 30 minutes of cardio then 30 minutes of resistance training in a session.

J. Lo's 1392 calorie a day diet. Jennifer does not just devote herself to the gym, but also sticks by the adage that 'abs are made in the kitchen'. A number of insights into her diet have shown just how hard she works and Jennifer even admitted she is 'left starving' by lunchtime.

There are three levels of the 10 day challenge diet plan. The first level – you consume at least one healthy dish made of whole foods per day. The second level – you consume at least two nutritious dishes made of whole foods per day. The third level – all your meals should be nutritious and healthy.

“It's no secret that I love dancing, so it doesn't even feel like exercise to me,” Lopez tells People. “I freestyle dance with Tracy Anderson five times a week. We'll incorporate light weights (3 lbs/ 1.4 kgs) for the arms and moves that focus on the butt and thighs and engage the core.”

Lo gets her workouts in with not one but two personal trainers, Dodd Romero and David Kirsch. "She trains for roughly an hour, four to five times a week, focusing on different body parts each time," Romero told Oprah Daily. Romero also emphasises just how hard the singer goes during each and every session.

Lopez thrived during the experience, later saying: “I did the vegan 22-day plan, and it was really good and I kept on with it for a few more weeks, and now I've incorporated a little bit of fish here and there. But I've got to tell you, I enjoy it. I enjoy eating that way.”

Emphasizing Protein Intake Although a major component of her meals is organic foods, she makes sure to eat protein in some form. Some of her favorite protein-rich options are egg whites, white meat turkey, salmon, grass-fed beef, chicken, nuts, and more.

Can the right vitamin or supplement really provide us with more energy, a stronger immune system and glowing skin? After all, it certainly seems like Lopez and Paltrow - as well as a slew of other celebrities promoting similar products - are thriving with their current vitamin routine.

A 500-calorie diet can be dangerous without a doctor's supervision. it can lead to malnutrition and other health problems. Healthy weight loss may include limiting food portions, burning calories, and other methods. A 500-calorie diet is an extreme form of a very low-calorie diet (VLCD).

That said, 4,000 calories a day could be considered extreme. “Four thousand calories for the average person is a lot and unless it's combined with the right training you will be in a pretty large calorie surplus and more likely to store it as fat,” warns personal trainer Nicole Chapman.