Vampire console question

You can use the cheats, but it'll disable the achievements...
Try increasing the Vampire Lore skill (Start by searching the information of vampires on the computer, then buy and read vampire tomes), so your vampire can prepare a plasma salad. Make a lot of them, maybe they'll increase vampire's weight. I'd recommend you to max this skill out, as some of the things your sim can do are potion (such as vampire cure), ability to buy and make plasma packs and of course quicker vampire XP gain.

Just drink a potion that will gain all the weight.

Ah yes, the Insta-Lean potion.
It requires 750 satisfaction points, but it is easy to get as you can complete whims and change aspirations at any time.
The reward store is located in the aspiration panel (gift icon). There you can buy traits and potions.

Thank you for your replies, i think i may buy the insta-large then work out until desired wieght. Also ive read all the tomes and researched all i can her vampire lore skill is maxed but i havent gotten the plasma salad recipe. Is it not available on console?