filling gaps in kitchen counter

[reindeesandchristmastrees]

I'm posting here as i had posted in DIY but no one replied.

In our kitchen we have an old specimen cabinet as a kitchen island. The counter top is oak boards and gaps have appeared where they join as my kitchen is very warm. Can I ask how best to fill them? I’m worried that wood filler may split or maybe not look great - if filler was recommended then any particular brand?
Thanks in anticipation

Yes! There is a special wood glue/ filler thing made exactly for this. It's available at screwfix. I'll see if I can find it.

www.screwfix.com/p/colorfill-worktop-compound-atlantic-oak/65728?tc=BT9&ds_kid=92700046986170840&ds_rl=1241687&ds_rl=1245250&ds_rl=1245725&ds_rl=1245250&gclid=CjwKCAiA65iBBhB-EiwAW253W38TYbgGmJgVJUvfhaMhZR-sZ6FLVhNVnHcsaEi0LryjTswsRL1trhoCrvwQAvD_BwE&gclsrc=aw.ds

You may need a different colour, but they do loads

Thanks so much
I''ll try to get a good colour match
Thanks

I believe you can mix sawdust with PVA and use that to fill the gaps? Might be worth a Google.