What will happen if I stop eating onion and garlic?

What Happens When You Stop Eating Onion and Garlic?

Onions and garlic aren’t just flavor powerhouses in the kitchen—they pack a serious nutritional punch. If you cut them out of your diet, you might miss out on some key health benefits without even realizing it.

Both are rich in antioxidants, but garlic, in particular, contains allicin, a compound formed when it’s crushed or chopped. Studies suggest allicin may help lower blood pressure and reduce cholesterol levels, contributing to better heart health over time. Onions also bring their own strengths to the table, offering flavonoids like quercetin, which have anti-inflammatory and immune-supporting properties.

Eliminating these ingredients means losing access to these natural compounds. While you won’t suddenly get sick from cutting out onions and garlic, long-term avoidance could mean fewer dietary antioxidants, potentially affecting your body’s ability to fight oxidative stress. For those relying on plant-based sources to support cardiovascular wellness, that’s a meaningful change.

Of course, some people avoid them for religious, cultural, or digestive reasons—especially in certain Ayurvedic traditions or due to conditions like IBS. But for the average person, ditching onions and garlic doesn’t come with perks; it’s more likely a step back from nature’s medicine cabinet.

Cooking without them might also leave meals tasting flat. They’re foundational in cuisines worldwide for a reason—flavor and function go hand in hand. Rather than cutting them out, consider moderation or adjusting preparation (like cooking instead of eating raw) if digestion is a concern.

In short, onions and garlic are small but mighty. Leaving them out of your diet means passing up some of the most accessible, food-based boosts to long-term health. Unless medically necessary, there’s little upside to saying no to the bulbs.