Jesy Nelson in Bathing Suit Says "Hydrate"

Jesy Nelson, the former Little Mix star, is drinking a Diet Coke but also extolling the merits of water. “Take this water and hydrate,” she captioned a photo of herself in a swimsuit, posing also with a unicorn inflatable pool raft. How does she stay so fit? Read on to see 5 ways Jesy Nelson stays in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

1. She, Well, Hydrates

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“About 50-75% of your weight is water! Getting enough fluid in your diet is important for everything in your body to work well and be healthy, including your heart, digestion, brain, muscles and skin. Fluids deliver nutrients to your cells, maintain a balance of nutrients, and remove wastes from your body. Good hydration supports normal energy levels, decreases risk of kidney stones, prevents constipation, and is associated with a reduction in urinary tract infections, high blood pressure, fatal heart disease and stroke,” says the Cleveland Clinic.

2. She Hates Jet Lag

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“Guys, seriously why is jet lag so disgusting? I feel like I have been awake for a solid three days now,” she once said. “I've never felt jet lag this bad; my eyes are literally burning, and I don't even feel like I'm here, I feel like I am just in a daze constantly….So, if anyone's got any tips on how to overcome the auld jet lag, it would be very much appreciated." How to beat it? “Get plenty of rest before your trip. Starting out sleep-deprived makes jet lag worse,” says the Mayo Clinic. “Gradually adjust your schedule before you leave. If you're traveling east, try going to bed one hour earlier each night for a few days before your departure. Go to bed one hour later for several nights if you're flying west. If possible, eat meals closer to the time you'll be eating them at your destination.”

3. Being Around People She Loves Makes Her Happy

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“The last music video we did was the breaking point. We’d been in lockdown, and it was the first time I could have a break and be at home around people that I love,” she told the Sun. “It was the happiest I’d ever felt and I didn’t realise that until I went back to work. I immediately became a different person.”

4. She Eats Balanced Meals

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“I’d starve myself at the peak of fame,” Jesy has admitted. “A dietary pattern is the total of what you eat and drink. A healthy dietary pattern includes nutrient-dense foods and beverages from all of the food groups:

• Vegetables of all types — dark green; red and orange; beans, peas and lentils; starchy and others
• Fruits, especially whole fruit
• Grains, at least half of which are whole grain
• Dairy, including fat-free or low-fat milk, yogurt and cheese, and lactose-free or fortified soy beverages and yogurts
• Protein, including lean meats, poultry and eggs; seafood; beans, peas and lentils; nuts, seeds and soy products
• Oils, including vegetable oils and oils in food such as seafood and nuts,” says the Mayo Clinic.

5. She’s Taken Control Over Her Life

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“I’m happy,” she told Glamour. “I’m hand-on-heart happy for the first time in years. I used to say I was – even up until recently – but not really feel it. Now I’m a 10 out of 10 happy – maybe nine out of 10 some days – but it’s just these past few months that I’ve actually felt it. The main reason for that is because I've taken control over my life and I've looked after myself. That’s the most important thing you can do and that's what I've done. I know this feeling is real because my mum sees it, my sister sees it.”