Will i get ALT overspamming from Google?

Hi guys! I am newbie on this forum and have a question to you.
Let's image I have a website about infarct disease and I have a page gallery.html where I put a lot of photos connected with this disease.
Let's say I have ~30 different photos. So what ALT should I use then on all these images in order NOT to get some sanctions from Google?
Is it good way if I use something like that?
Img1 alt = "infarct photo"
Img2 alt = "infarct symptoms"
Img3 alt = "infarct diagnostics"
Img4 alt = "infarct photo hd"
Img5 alt = "how to treat infarct"
and etc..
Is it normal? If no, may be you can give me some tips about it.
Thanks

The alt attribute provides alternative information for an image if a user for some reason cannot view it, so I think just describing what is on the photo should be fine. If you have the same keywords, you might add "infarct photo 1", "infarct photo 2".

If you can make them LSI related to they keyword instead of repeating the kw 100 times, all the better, but you're doing nothing wrong. All images are supposed to have ALT.

Thanks for the answers guys

Alt is very simillar to anchor text, so better not overspam like "how to treat infarct" if it's not exactly explains how) the siplier - the better

Roelly said:

Alt is very simillar to anchor text, so better not overspam like "how to treat infarct" if it's not exactly explains how) the siplier - the better

Click to expand...

Thank you for your reply

Yup, if it were my main site I would be describing roughly what was in the image as opposed to worrying too much about keywords. Don't over optimise.

The alt tab will also be visible when a user hovers their cursor over the image.