There is no best time to drink juice. Your body takes up the vitamin C and potassium in a glass of orange juice just as well at four in the afternoon as at eight in the morning. The clock does not change what is in the glass. What does change is your blood sugar, your teeth and how hungry you feel an hour later, and that is the part worth getting right.
Does an empty stomach help you absorb more?
No. This is the claim you see most often, usually attached to the idea of flushing out toxins, and it does not hold up. Water soluble vitamins are taken up in your gut whatever else is in there with them. Nothing about an empty stomach makes your body take in more of them.
An empty stomach does one thing that matters. It lets the sugar in the juice land in your bloodstream without anything slowing it down.
Why a glass on its own can leave you peckish
Juicing strips out most of the fibre. Fibre is what slows the sugars in whole fruit down, and it is a big part of why fruit fills you up. Take it out and you are left with a sweet drink that goes down in a minute. For plenty of people that means a quick lift and then hunger before long.
If you live with type 2 diabetes this matters more. Fruit juice moves blood glucose quickly. It is not off the table, but a small glass with a meal is a different thing to a large one on its own. Your diabetes team can tell you what fits your readings.
When juice fits best
- With breakfast or lunch. Food alongside it slows the sugars down and keeps you full for longer. This is how I drink nearly all of mine.
- Before a workout. If you want something quick it does the job and it sits easily on the stomach. Water first, then a small glass. A lemon ginger turmeric shot is my usual before a ride.
- Mid afternoon if you are flagging. A small glass works better for me than a second coffee, and it is at least honest about being sugar rather than pretending otherwise.
- Not last thing at night. Free sugars sitting on your teeth overnight is the worst version of this, and juice is acidic on top of it. If you do have a glass in the evening, rinse your mouth with water after and leave brushing for half an hour.
Juice and your teeth
Juice is both sugary and acidic, and the NHS line is to keep it to mealtimes rather than sip it through the day. Sipping means your teeth get a slow bath of sugar and acid instead of one hit. Drink it, then finish. Do not nurse a glass for an hour.
Brushing straight afterwards is a mistake. Acid softens the surface of your enamel for a while, so brushing right away scrubs at it. Wait at least half an hour and rinse with water in the meantime.
The 150ml rule matters far more than the hour
Whatever time you settle on, the amount is the bit the NHS is actually clear about. Juice and smoothies together count as one of your 5 a day at 150ml, and no amount past that adds a second portion. A small glass with breakfast is that portion. For the rest of the day, water or whole fruit is the better trade.
I go through the detail in does juice count as 5 a day. If you are weighing up a blender against a juicer, that is juicing vs smoothies, and for the wider picture of what juice does and does not do for you, is juicing healthy is where I set it out.
What I actually do
Most mornings I juice, drink it with breakfast, and that is my 150ml done for the day. If I am out early the juice goes in a small bottle and gets drunk with whatever I eat later rather than on the way out of the door. On the days I skip breakfast I skip the juice too, because a glass on an empty stomach just leaves me hungry by ten.
That is the whole answer. Pick a time you will actually keep, put some food with it, keep it to one small glass, and stop worrying about the hour.
Quick answers
Is morning the best time to drink juice?
Morning works well because it is easy to pair with breakfast, not because your body absorbs more then. Any mealtime behaves the same way.
Should you drink juice on an empty stomach?
There is no benefit to it. You absorb the same nutrients either way, and the sugars arrive faster with nothing there to slow them down.
Is juice before bed bad?
It is the worst time for your teeth, because free sugars and acid sit on them all night. Keep juice to mealtimes and rinse with water if you have one later.
Can you drink juice after a workout?
Yes, a small glass is fine as part of a proper meal. It gives you quick sugar and fluid, but it is not a recovery drink on its own.
More juices, sorted by what you need them for: see the full Energy collection, or browse gentle juices for digestion such as a pear and ginger juice.