There is no scientifically proven “best” time to drink celery juice. The popular recommendation to drink 16 ounces first thing in the morning on an empty stomach comes from wellness influencers, not clinical research. The nutritional value of celery does not change based on when you consume it, and drinking it on an empty stomach has no additional effect on how your body digests food afterward.
That said, timing can still matter in practical ways, from how full you feel afterward to how it pairs with the rest of your diet. Here’s what the evidence actually supports.
The Empty Stomach Claim
The idea of drinking celery juice on an empty stomach gained popularity through Anthony William, a wellness figure who recommends 16 ounces (about 475 mL) each morning before eating anything else. Proponents claim this detoxifies the body and promotes weight loss. Neither claim has scientific backing.
Your body processes the nutrients in celery juice the same way whether your stomach is empty or not. The hydration benefit, which is the most straightforward thing celery juice offers, also doesn’t depend on timing. If you enjoy drinking it first thing in the morning, there’s nothing wrong with that. But there’s no physiological advantage to doing so.
Why Pairing It With Food Makes More Sense
Celery juice is very low in calories and contains almost no protein, fat, or fiber, especially if you’ve strained out the pulp. Without fiber, your body digests the juice quickly, which can leave you hungry soon after drinking it. If you replace a full breakfast with celery juice, you may end up eating more calories later in the day to compensate.
Long term, using celery juice as a breakfast substitute can be harmful. It simply doesn’t contain the energy-rich carbohydrates, protein, or fats your body needs to function properly in the morning. A better approach is to drink it alongside a balanced meal that includes fiber, healthy fats, and protein. This keeps you full and lets you still get whatever benefits the juice provides without shortchanging your nutrition.
What Celery Juice Actually Provides
Celery juice is mostly water, which makes it a decent hydration tool. It contains small amounts of potassium, vitamin K, and vitamin C, along with plant compounds called flavones, particularly apigenin and luteolin. These compounds have antioxidant and anti-inflammatory properties in lab studies.
In practice, however, your body doesn’t absorb these compounds very efficiently from celery. Human trials show that plasma concentrations of flavones from celery remain very low, peaking more than seven hours after consumption. This slow timeline suggests the compounds are absorbed in the colon rather than the small intestine, which limits how much actually reaches your bloodstream. Juicing doesn’t appear to dramatically change this absorption pattern.
One case report published in the Journal of Chiropractic Medicine documented an elderly man with high blood pressure who juiced one full bunch of celery (10 to 12 stalks) daily and saw a reduction in blood pressure. This is a single case, not a clinical trial, so it’s far from conclusive. But it reflects the typical volume people consume when they adopt a celery juice habit.
How Much to Drink
There’s no established clinical dose for celery juice. The popular recommendation is 16 ounces per day, which roughly corresponds to one bunch of celery. No studies have identified a toxic upper limit for celery juice in healthy adults, but that doesn’t mean more is better. Celery is naturally higher in sodium than most vegetables, so drinking large quantities daily could add meaningful sodium to your diet, particularly if you already consume a lot of processed food.
If you’re new to celery juice, starting with 8 ounces and seeing how your digestive system responds is reasonable. Some people experience bloating or loose stools, especially when drinking it on an empty stomach, because of the concentration of certain compounds without fiber to slow digestion.
Who Should Be Cautious
Celery contains vitamin K and coumarin compounds, which raises theoretical concerns for people taking blood thinners like warfarin. No clinical evidence has confirmed a direct interaction, but the potential exists because vitamin K plays a central role in blood clotting. If you take warfarin or similar medications, it’s worth discussing regular celery juice consumption with your prescriber so your dosing can be monitored.
People with kidney disease should also be mindful. The potassium and sodium in celery juice, while modest in a single glass, can add up with daily use and may matter for anyone on a restricted diet. Similarly, celery is one of the more common food allergens in parts of Europe, though less frequently recognized in the United States. If you experience itching, swelling, or stomach pain after drinking it, stop and get evaluated.
A Practical Approach to Timing
If you enjoy celery juice and want to make it part of your routine, the most practical timing is with or shortly before a meal. Drinking it alongside breakfast gives you hydration and a small nutrient boost without the downsides of skipping real food. If you prefer it as an afternoon drink, pairing it with a handful of nuts or some cheese helps slow absorption and keeps your blood sugar steady.
The time of day matters far less than consistency of your overall diet. Celery juice is not a detox, a meal replacement, or a cure. It’s a low-calorie vegetable juice that can fit into a healthy eating pattern when you don’t treat it as something more than it is.