A TikTok doctor has shared three unusual signs of dehydration as warning signs to monitopr water levels over the hot summer months.

Dr Karan Rajan, a surgical doctor and lecturer at Sunderland University, shares his experience and knowledge with his 4.9 million followers on TikTok.

In his latest video, the popular doctor told followers three unusual signs of dehydration, saying: “Make sure you know them all. You start craving something sweet.

"Happens because you're so dehydrated your liver struggles to break down glycogen into glucose, so there is less glucose in your blood.

"Dry eyes. Your body produces tears for more than just crying.

"Tears are also for lubricating and cleaning your eyes, so dehydration means dry eyes that are easily irritable.

"Bad breath. Dehydration means less saliva, more bacteria and more funky breath."

The clip has received over 1.5 million views.

A TikTok doctor has shared three unusual signs of dehydration as warning signs to monitopr water levels over the hot summer months.

Dr Karan Rajan, a surgical doctor and lecturer at Sunderland University, shares his experience and knowledge with his 4.9 million followers on TikTok.

In his latest video, the popular doctor told followers three unusual signs of dehydration, saying: “Make sure you know them all. You start craving something sweet.

"Happens because you're so dehydrated your liver struggles to break down glycogen into glucose, so there is less glucose in your blood.

"Dry eyes. Your body produces tears for more than just crying.

"Tears are also for lubricating and cleaning your eyes, so dehydration means dry eyes that are easily irritable.

"Bad breath. Dehydration means less saliva, more bacteria and more funky breath."

The clip has received over 1.5 million views, 106,000 likes and plenty of comments with mixed opinions, as well as some people relating to the odd side effects.

One user commented: “I drink water consistently and I'm still always thirsty.”

Another viewer said: “Do your dry eyes also become blurry? I did a half marathon and my eyes were cloudy the rest of the day.”

“I’m always craving sweet things even when I’ve drank plenty,” commented someone else.

“Me eating smarties as i watch this video...I think imma drink some more water now” added another user. [sic]

“Me everyday and I drink SO MUCH WATER, I’m not kidding,” said another follower.

Someone else said: "Not me- the person who never drinks water but constantly craves sugar."

Another person commented: "I have dry eyes and crave sugary stuff all day... I will go get some more water."

ENDS