01-18-2023, 11:21 AM
by Brittany Anas
Weâve officially reached the dog days of summer, so if youâre panting for relief in this stifling heat, sipping on a big, icy glass of water and doubling down on hydrating fruits and veggies is definitely a good idea. But staying cool and comfortable isnât just about a good offense. On extra-hot days, itâs also important to play defense with your diet, steering clear of diuretic foods and drinks (which flush fluids from your body quickly) and dehydrating high-sodium eats.
âFor the most part, your body tells you what it wants, especially in the heat of a summerâs day,â says dietitian Wendy Lord, R.D., a consultant for Sensible Digs. âWe generally start craving cooler, refreshing foods rather than those that are likely to make us more dehydrated.â
The thing is, itâs not all that uncommon that we set ourselves on auto-pilot, ignoring or misunderstanding the signals our body sends us, according to Lord. (This explains the phenomenon of why we mistake thirst for hunger and reach for a snack instead of refilling our water bottles.) Plus, salty foods like burgers, dogs, and potato chips are practically synonymous with backyard barbecues, making it easy to exceed the recommended 2,300 milligrams of sodium per day in just one meal, Lord points out.
âThe problem with having too much salt in the body is that it draws water out of the tissues and causes dehydration,â she explains. The solution isnât as simple as eliminating salt, though. Sodium and chloride are both important for maintaining the water balance in the body and ensuring your muscles contract and relax normally, Lord says. âWhen youâre losing salt through your sweat, itâs important to replace it,â she explains. âThe trick is to not go overboard.â
Ahead, we break down which foods and drinks to avoid on hot days, plus what you should reach for instead.
1. Caffeinated Iced Coffees & Teas
When the temps are flirting with triple digits, a hot, steamy beverage probably doesnât hold much appeal. But caffeinated iced coffees and teas can actually be worse for you from a hydration standpoint.
You see, caffeine is a diuretic, which means it makes you urinate more frequently, and iced drinks are even more diuretic than hot drinks, says dietitian Kelsey Butler, R.D., of Coastal Dream Life. Say what? âThis is because ice actually uses bodily fluids to melt it,â Butler explains. If youâre trying to stay hydrated on a hot day, itâs best to avoid caffeinated drinks altogether, but especially the iced ones. Rough, we know.
Of course, you can always go for a decaf coffee or caffeine-free tea. Or, you can opt for a healthy smoothie (here are some green smoothies that dietitians love). â[Smoothies] are packed with vegetables and fruit that provide fluid as well as fiber, vitamins, and minerals,â Lord says.
The key to blending a nutritionally balanced smoothie, Lord says, is adding in protein like peanut butter, nuts, or protein powder, as well as healthy fats such as seeds and avocados.
2. Soda
Not only is soda high in sugar, but itâs also a diuretic and the fizziness can trick you into thinking your thirst has been quenched prematurely, according to dietitian Bill Bradley, R.D., CEO of Mediterranean Living. Research shows that the mouthfeel of carbonated beverages makes it seem like youâre quenching your thirst more than you actually are, which may lead you to drink less than you truly need.
Thatâs why itâs best to drink plain water to hydrate, Bradley says. You can always add fresh fruit for a bit of sweetness. If youâre really craving something bubbly, stick with seltzerâbut donât let the fizziness fake you out!
3. Alcohol
Whether youâre sipping piña coladas poolside or bringing a cooler full of beer to the beach, heed this warning: Alcohol leads to dehydration, says Lord. âYou should always drink a glass of water between alcoholic drinks, but it is even more important on a hot, sunny day,â she urges.
Youâll really want to watch out for drinks like whiskey-sodas, margaritas, and red wine sangrias. Thatâs because liquors like cognac, brandy, red wine, bourbon, tequila, and darker whiskey have the highest levels of congeners, which are compounds that occur naturally in the distilling and fermenting processes. According to one study published in Current Drug Abuse Reviews, congeners can dehydrate you more quickly.
4. Salty Snacks
As easy as they are to munch on when youâre lounging, think twice before loading your pool bag with potato chips, pretzels, salted nuts, and other higher-sodium snacks. Theyâre a-okay options if youâre hydrating well, but less than ideal if youâre not on top of your H2O game, explains The Vitamin Shoppe nutritionist Brittany Michels, M.S., R.D.N., L.D.N., C.P.T. You see, eating lots of salt when dehydrated is a recipe for fluid retention, which is downright uncomfortable when itâs sweltering out.
Read More: 5 Snacks And Drinks That Make Great Hiking Partners
Your best move: If youâre craving a crunch, focus on fruits and veggies. Butler recommends watermelon, which is 92 percent water and contains citrulline, an amino acid that helps improve blood flow and reduce inflammation. Thatâs all good news for proper hydration and healthy circulation on super-hot days, she says.
5. Spicy Foods
If youâre spending time in the heat, ditch the hot sauce, spicy peppers, and hot chicken sandwiches. âSpicy foods temporarily raise your body temperature, making it more challenging to stay cool,â explains dietitian Stephanie Small, M.S., R.D.N., L.D., of Jugofeed. Why make yourself even sweatier than you already are?
Instead, keep things mild with a big salad. âSalads are basically crispy water,â Lord says. âLettuce, tomato, cucumber, and other vegetables contain water in a framework of fiber.â
She recommends topping your salads with legumes like lentils, chickpeas, or beans, which add some slow-release carbohydrates and protein. You could also include meat, fish, or chicken for protein, as well as avocado, nuts, or seeds for healthy fats. Need some more inspiration? Check out this list of the best and worst things to put on your salad.
6. Asparagus
Coffee, sodas, and alcohol may be the most known diuretics, but asparagusâas healthy as it isâis also a diuretic, says Small. So, not only does the veggie make your pee smell funny, but it makes you have to go to the bathroom more frequently (research published in the West Indian Medical Journal backs this up).
Weâve officially reached the dog days of summer, so if youâre panting for relief in this stifling heat, sipping on a big, icy glass of water and doubling down on hydrating fruits and veggies is definitely a good idea. But staying cool and comfortable isnât just about a good offense. On extra-hot days, itâs also important to play defense with your diet, steering clear of diuretic foods and drinks (which flush fluids from your body quickly) and dehydrating high-sodium eats.
âFor the most part, your body tells you what it wants, especially in the heat of a summerâs day,â says dietitian Wendy Lord, R.D., a consultant for Sensible Digs. âWe generally start craving cooler, refreshing foods rather than those that are likely to make us more dehydrated.â
The thing is, itâs not all that uncommon that we set ourselves on auto-pilot, ignoring or misunderstanding the signals our body sends us, according to Lord. (This explains the phenomenon of why we mistake thirst for hunger and reach for a snack instead of refilling our water bottles.) Plus, salty foods like burgers, dogs, and potato chips are practically synonymous with backyard barbecues, making it easy to exceed the recommended 2,300 milligrams of sodium per day in just one meal, Lord points out.
âThe problem with having too much salt in the body is that it draws water out of the tissues and causes dehydration,â she explains. The solution isnât as simple as eliminating salt, though. Sodium and chloride are both important for maintaining the water balance in the body and ensuring your muscles contract and relax normally, Lord says. âWhen youâre losing salt through your sweat, itâs important to replace it,â she explains. âThe trick is to not go overboard.â
Ahead, we break down which foods and drinks to avoid on hot days, plus what you should reach for instead.
1. Caffeinated Iced Coffees & Teas
When the temps are flirting with triple digits, a hot, steamy beverage probably doesnât hold much appeal. But caffeinated iced coffees and teas can actually be worse for you from a hydration standpoint.
You see, caffeine is a diuretic, which means it makes you urinate more frequently, and iced drinks are even more diuretic than hot drinks, says dietitian Kelsey Butler, R.D., of Coastal Dream Life. Say what? âThis is because ice actually uses bodily fluids to melt it,â Butler explains. If youâre trying to stay hydrated on a hot day, itâs best to avoid caffeinated drinks altogether, but especially the iced ones. Rough, we know.
Of course, you can always go for a decaf coffee or caffeine-free tea. Or, you can opt for a healthy smoothie (here are some green smoothies that dietitians love). â[Smoothies] are packed with vegetables and fruit that provide fluid as well as fiber, vitamins, and minerals,â Lord says.
The key to blending a nutritionally balanced smoothie, Lord says, is adding in protein like peanut butter, nuts, or protein powder, as well as healthy fats such as seeds and avocados.
2. Soda
Not only is soda high in sugar, but itâs also a diuretic and the fizziness can trick you into thinking your thirst has been quenched prematurely, according to dietitian Bill Bradley, R.D., CEO of Mediterranean Living. Research shows that the mouthfeel of carbonated beverages makes it seem like youâre quenching your thirst more than you actually are, which may lead you to drink less than you truly need.
Thatâs why itâs best to drink plain water to hydrate, Bradley says. You can always add fresh fruit for a bit of sweetness. If youâre really craving something bubbly, stick with seltzerâbut donât let the fizziness fake you out!
3. Alcohol
Whether youâre sipping piña coladas poolside or bringing a cooler full of beer to the beach, heed this warning: Alcohol leads to dehydration, says Lord. âYou should always drink a glass of water between alcoholic drinks, but it is even more important on a hot, sunny day,â she urges.
Youâll really want to watch out for drinks like whiskey-sodas, margaritas, and red wine sangrias. Thatâs because liquors like cognac, brandy, red wine, bourbon, tequila, and darker whiskey have the highest levels of congeners, which are compounds that occur naturally in the distilling and fermenting processes. According to one study published in Current Drug Abuse Reviews, congeners can dehydrate you more quickly.
4. Salty Snacks
As easy as they are to munch on when youâre lounging, think twice before loading your pool bag with potato chips, pretzels, salted nuts, and other higher-sodium snacks. Theyâre a-okay options if youâre hydrating well, but less than ideal if youâre not on top of your H2O game, explains The Vitamin Shoppe nutritionist Brittany Michels, M.S., R.D.N., L.D.N., C.P.T. You see, eating lots of salt when dehydrated is a recipe for fluid retention, which is downright uncomfortable when itâs sweltering out.
Read More: 5 Snacks And Drinks That Make Great Hiking Partners
Your best move: If youâre craving a crunch, focus on fruits and veggies. Butler recommends watermelon, which is 92 percent water and contains citrulline, an amino acid that helps improve blood flow and reduce inflammation. Thatâs all good news for proper hydration and healthy circulation on super-hot days, she says.
5. Spicy Foods
If youâre spending time in the heat, ditch the hot sauce, spicy peppers, and hot chicken sandwiches. âSpicy foods temporarily raise your body temperature, making it more challenging to stay cool,â explains dietitian Stephanie Small, M.S., R.D.N., L.D., of Jugofeed. Why make yourself even sweatier than you already are?
Instead, keep things mild with a big salad. âSalads are basically crispy water,â Lord says. âLettuce, tomato, cucumber, and other vegetables contain water in a framework of fiber.â
She recommends topping your salads with legumes like lentils, chickpeas, or beans, which add some slow-release carbohydrates and protein. You could also include meat, fish, or chicken for protein, as well as avocado, nuts, or seeds for healthy fats. Need some more inspiration? Check out this list of the best and worst things to put on your salad.
6. Asparagus
Coffee, sodas, and alcohol may be the most known diuretics, but asparagusâas healthy as it isâis also a diuretic, says Small. So, not only does the veggie make your pee smell funny, but it makes you have to go to the bathroom more frequently (research published in the West Indian Medical Journal backs this up).



