What to Put in Your Costco Cart During Menopause
Eating well in perimenopause sounds straightforward — until you're standing in a Costco warehouse with a cart, a list that says "more protein and anti-inflammatory foods," and absolutely no plan. This is the RD breakdown of what's actually worth buying.
RD Note
Perimenopause increases your needs for protein (to protect muscle mass), calcium and vitamin D (bone density), and foods that support blood sugar stability and reduce inflammation. You don't need a supplement cabinet — you need a smarter cart. Costco makes that easier, not harder.
💪 Protein — Muscle, Satiety & Blood Sugar
Aim for 25–30g per meal
Rotisserie Chicken
One of the best value sources of complete protein. Shred it Sunday and use it across 3–4 meals — salads, soups, grain bowls. Roughly 25–30g protein per serving.
Canned Wild Salmon (Pacific)
Double-duty: high protein and omega-3s for inflammation. Buy the kind with bones — they're soft and edible, and a meaningful source of calcium.
Plain Greek Yogurt or Skyr (large tub)
Plain only — flavoured varieties carry 15–20g of added sugar. Greek yogurt and skyr provide protein and calcium in one. Add your own fruit and a handful of hemp seeds.
Cottage Cheese
Having a moment — and for good reason. About 25g protein per cup, mild flavour, works savoury or sweet. Pairs well with cucumber, smoked paprika, or berries.
Frozen Shelled Edamame
The only plant food that's a complete protein and a source of phytoestrogens (isoflavones). Toss from frozen into salads, soups, or stir-fries in minutes.
Eggs (large flat) ⭐ look for vitamin D–enriched
At 6g protein each, eggs are inexpensive and versatile. Look for vitamin D–enriched eggs if available — a meaningful bonus for bone health, since vitamin D is essential for calcium absorption and deficiency is common, particularly through fall and winter. The Costco flat makes batch cooking — hard boiled eggs for the week — very practical.
🦴 Bone & Joint Support
Calcium + Vitamin D + collagen-supporting foods
Canned Salmon with Bones
Worth repeating here: the soft, edible bones in canned salmon deliver a meaningful calcium hit. One of the most underrated bone-health foods at Costco.
Almonds (raw or lightly roasted)
A top plant-based source of calcium alongside healthy fats and magnesium. A small handful goes a long way — 23 almonds = about 75mg calcium.
Organic Milk or Fortified Plant Milk (if you buy in bulk)
Dairy milk is still one of the most bioavailable sources of calcium and typically vitamin D–fortified. If you're plant-based, look for fortified oat or soy milk — not all are equal.
If you have been reading this and thinking “okay but what do I actually eat?” - this is your answer.
A free 7-day meal plan designed by a Canadian RD navigating perimenopause herself.
🌸Hormone & Hot Flash Support
Phytoestrogens, healthy fats & fibre
Ground Flaxseed
Rich in lignans — a type of phytoestrogen with evidence for hot flash reduction. Buy it ground or grind yourself; whole flaxseed passes through largely undigested. Add to yogurt, oats, or smoothies.
Wild Salmon (frozen fillets)
Omega-3 fatty acids support estrogen metabolism and reduce inflammation. Wild-caught tends to be higher in omega-3s than farmed. Costco's frozen wild sockeye is a solid buy.
Frozen Edamame (again)
Isoflavones in soy have the most consistent evidence of any phytoestrogen for reducing hot flash frequency. Whole food sources like edamame are preferable to supplements.
⚖️Blood Sugar Stability
Fibre, protein & slow-release carbohydrates
Mixed Nuts (unsalted)
Protein, healthy fat, and fibre in one — the combination that slows glucose absorption. A small handful with a piece of fruit is one of the most practical blood sugar–stabilizing snacks.
Canned Lentils or Chickpeas
High in soluble fibre and plant protein. Canned is just as nutritious as dried and far more practical. Costco's multi-packs make it easy to keep these stocked.
Steel Cut Oats (large bag)
Lower glycemic index than rolled oats, high in beta-glucan (soluble fibre that blunts blood sugar spikes). Batch cook on Sunday and reheat through the week.
Frozen Mixed Berries
Lower sugar than most fruit, high in fibre and antioxidants, and frozen is just as nutritious as fresh. Add to oats, yogurt, or smoothies year-round.
🫐Anti-Inflammatory
Polyphenols, omega-3s & key spices
Frozen Wild Blueberries
Wild blueberries have a higher antioxidant concentration than cultivated. Frozen preserves this. One of the most evidence-backed anti-inflammatory foods available.
Extra Virgin Olive Oil (large bottle)
The fat most consistently linked to reduced inflammation. Costco's Kirkland EVOO is high quality and significantly cheaper per litre than grocery store options. Use for cooking and dressings.
Walnuts
The highest omega-3 content of any nut. Also rich in polyphenols. A small daily handful is one of the most research-supported dietary habits for reducing inflammation.
Ground Turmeric (large jar)
Curcumin, the active compound, has anti-inflammatory properties. Buying in bulk at Costco makes it practical to use regularly — in eggs, soups, golden milk, and roasted vegetables.
🌿Gut Health
Fermented foods & prebiotic fibre
Plain Kefir
A fermented dairy drink with a broader probiotic profile than most yogurts. Plain only. Drink it straight or add to smoothies. Gut microbiome diversity declines through menopause — fermented foods are one of the most practical ways to support it.
Frozen Edamame (yes, again)
Also a prebiotic — feeds beneficial gut bacteria. At this point edamame might be the most versatile item on this list.
High-Fibre Crackers (e.g. Wasa, Mary's)
Look for 3g+ fibre per serving with a short ingredient list. Pair with canned salmon, cottage cheese, or nut butter for a balanced snack.
Skip or Swap
A few common Costco buys worth reconsidering — no shame, just a better option.
Flavoured Greek yogurt (large tub) → Plain skyr or Greek yogurt + frozen berries
Granola bars (most varieties) → Mixed nuts + dried fruit, or RXBARs if you want a bar
Flavoured instant oatmeal packets → Steel cut oats (batch cooked) + your own toppings
Vegetable oils (corn, canola blend) → Extra virgin olive oil (Kirkland EVOO is excellent value)
One Costco trip, done intentionally, can set up a full week of eating that actually supports how you feel. You don't need every item on this list — even five or six of these as your regular staples makes a real difference.
The goal isn't a perfect cart. It's a strategic one.
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