Slower digestion is one of the most common things people notice, and it can leave you bunged up and uncomfortable. Drinking more water through the day helps a lot, and a gentle fibre like Fybogel keeps things moving without being harsh. Fybocalm is handy when bloating and cramping are the bigger problem.

Fybogel Orange Natural Fibre Drink 30 Sachets€15.00View productFybogel Fibrechews Citrus 30 Chewable Tablets€12.00View productFybocalm Constipation Relief Capsules 30s€15.99View product

These treatments slow how quickly your stomach empties, which can bring on heartburn or acid reflux for some people. An antacid that contains an alginate, like Gaviscon, forms a protective raft on top of your stomach contents to ease the burning. If reflux is frequent, or it lasts more than a week or two, see your GP, because you may need a different treatment.

Gaviscon Extra Chewable Tablets Mint Flavour 48’s€13.99View product

When weight comes off fast, two things happen. You can lose muscle as well as fat, and your face can start to look hollow, what people call Ozempic face. They need different help. To protect muscle, the best option is a complete protein that is high in leucine, like a whey or clear protein, plus a little resistance exercise. Collagen is not the ideal muscle protein, so for a proper protein just ask us in store. For the Ozempic face side, good skincare genuinely helps the skin look hydrated and firmer, though nothing you put on can replace the facial fat you have lost. A hyaluronic acid serum draws moisture in to plump the surface, a retinol supports firmness and texture over time, and collagen adds support from the inside.

Vital Proteins Collagen Peptides Powder Large 567g€55.49View productCeraVe Hydrating Hyaluronic Acid Serum 30ml€18.00View productCeraVe Resurfacing Retinol Serum 30ml€18.00View product

Eating and drinking less makes it easy to get dehydrated, which shows up as headaches, tiredness and dizziness. An electrolyte drink puts back the salts your body needs, not just plain water. High 5 Zero is a simple tablet you drop into a glass.

High 5 Zero Electrolyte – Citrus (20 Tablets)€7.95View productHigh 5 Zero Electrolyte – Berry (20 Tablets)€7.95View product

When your appetite drops right off, you eat less of everything, including the vitamins and minerals your body still needs every day. A good daily multivitamin quietly covers those gaps. If you are eating very little, or cutting back on meat, it is easy to run low on vitamin B12, which contributes to normal energy metabolism and to the reduction of tiredness and fatigue. Topping it up helps most if your level has actually dropped low.

Seven Seas Omega-3 & Multivitamins Man€19.34View productSona B12 Methylcobalamin 1000mcg€14.30View product

Rapid weight loss can push more hairs than usual into the shedding phase, so a few months in you might notice extra hair in the brush. It is usually temporary, and a hair supplement with the right nutrients can support normal, healthy growth while your body settles.

Viviscal Healthy Hair Vitamin Woman 30€34.95View productViviscal Man – 60€35.97View product

Magnesium is one of the quiet heroes here. It supports normal muscle function so it can ease cramps, it helps with sleep, and it gives sluggish digestion a gentle nudge, all common issues on these treatments. If you are not sure which type suits you, our full guide walks you through it.

Magnesium Verla Granules 20 Sachets€10.95View product

Read our magnesium guide

Fast weight loss can take a toll on your bones, and most of us in Ireland run low on vitamin D anyway, especially through the winter. A daily vitamin D supports normal bones, muscles and immune function. Our guide explains exactly how much you need by age.

Vitabiotics Ultra D3 Vitamin D3 2000Iu 50Ug€13.89View productVitamin D3 2000 IU Tablets, 60s€8.99View product

Read our vitamin D guide