What to Drink for Food Poisoning? | Hydration That Helps

When food poisoning hits, your body is losing fluids faster than normal, and the main risk becomes dehydration. The right drinks replace both water and the electrolytes you’ve lost. Water helps, but an oral rehydration solution like Pedialyte is the most effective first choice for balancing what your body needs.

If you’re dealing with vomiting or diarrhea, what you sip in the first 24 hours matters more than what you eat. The goal is simple: keep fluids down in small amounts, replace electrolytes, and avoid drinks that will make diarrhea worse.

Best Drinks to Start With

Oral rehydration solutions are your most reliable option. Mayo Clinic lists rehydration solutions as a way to replace lost fluids and prevent dehydration, and these formulas balance electrolytes more effectively than plain water alone.

Good options, in order of preference:

• Oral rehydration solution (Pedialyte or a store brand) — the most effective for replacing salts and fluids
• Clear broth — easy to keep down and adds sodium
• Water — the universal baseline, best in small frequent sips
• Diluted clear juice — apple or white grape juice mixed with water, only once you’re keeping fluids down

For older adults, people with weakened immune systems, or anyone with severe diarrhea, an oral rehydration solution is the recommended route rather than casual hydration drinks.

What to Drink When You Feel Sick

If nausea is making it hard to keep anything down, the NHS advises taking small sips rather than drinking large amounts at once. Start with ice chips or teaspoon-sized sips, and work up to a few tablespoons as you tolerate them.

Once vomiting subsides, move from ice chips to clear liquids. Broth is listed by Mayo Clinic among the tolerable options, and it provides sodium your body needs. Avoid anything sweet at this stage — sugar draws water into the intestines and can make diarrhea worse.

If you cannot keep fluids down at all, or if you notice signs of dehydration like dark urine, dizziness, or a dry mouth, medical care may be needed for IV fluids. Severe dehydration is a medical issue that requires emergency care.

Drinks to Avoid During Recovery

Several common choices actually make food poisoning worse. The NHS specifically advises against fruit juice and fizzy drinks because they can worsen diarrhea. The CDC goes further, warning against sports drinks like Gatorade as a substitute for oral rehydration solutions — they’re simply not formulated to treat dehydration from illness.

• Fruit juice and fizzy drinks — worsen diarrhea; dilute any juice heavily if you use it at all
• Sports drinks — not a substitute for ORS when you’re ill
• Coffee and caffeinated drinks — can stimulate the bowels and worsen diarrhea
• Alcohol — delays recovery and worsens diarrhea
• Milk and dairy — harder to digest after food poisoning; skip it temporarily

If you’re choosing options for recovery, the best drinks for food poisoning recovery cover tested product picks ranked by how well they replace electrolytes.

When to Call a Doctor

Most food poisoning cases resolve at home within a couple of days, but some situations need medical attention. Mayo Clinic’s food poisoning guidance outlines when to seek care, and the red flags are specific.

Get medical help if you experience:

• Inability to keep fluids down for 24 hours
• Signs of dehydration despite drinking
• Blood in vomit or stool
• Fever above 101.5°F
• Neurological symptoms like blurry vision or muscle weakness

For infants and young children, The NHS adds that baby formula should never be made weaker — use it at its usual strength. Infants dehydrate faster than adults and their electrolyte needs are different.