I love food. I love growing food. I love cooking food. I love eating food. I love writing about food, and reading about it, and shopping for it. I even love adding the compostable scraps from my food to the compost heap, and turning it.
I consider myself very lucky to be born into a country with a high level of food security. Even as a child, in a family with very limited resources, I never had to worry about where my next meal was coming from. Many people, both worldwide and in this country are not so lucky.
This is not a matter of agricultural productive capacity. According to figures from the U.N. Food and Agricultural Organization worldwide agriculture produces enough food to provide 2,720 calories per day for everyone on the planet. Yet 1 in 7 people are malnourished. This is crazy, stupid, and immoral. No one in the 21st century should have to worry about something as basic as food.
So what am I proposing that you do? The easiest thing is to find a good relief organization, and send them some money. Different organizations have different approaches, priorities, balance between local and international relief, and ideologies, so find one which is a good fit for you. Two well known ones are Oxfam (and old established famine aid group founded in the UK in the late 1940s), and Bread for the World (a Christian coalition). There are dozens of organizations, and a good way to screen them to avoid scams is to go to Guidestar, which archives the financial statements of non-profit organizations and has some basic screening information. You don't necessarily have to read all the financial statements to determine whether the organization is an established charity. Just determine that they have a reasonable budget and a decent degree of transparency.
If you are religious, your church probably has a disaster aid organization. Even there, I'd do some basic due diligence to make sure the money is actually going to alleviate hunger.
Another avenue to take is becoming active around issues which affect world hunger. Here in the U.S. every agricultural bill and most domestic welfare bills have provisions which directly affect the distribution of food both domestically and worldwide. Frankly, with respect to food, I'm in favor of erring on the side of generosity, both domestically and internationally. It's not only a moral matter, but a practical one. A well fed people are much less likely to spark conflicts.
Volunteering at soup kitchens and participating in food drives are other great ways to do a part in ending hunger.
But whatever you choose to do, and wherever on the political spectrum you fall, a 21st century food distribution system which tolerates hunger is a broken system. So click on one of the links I've provided above, and send some money to feed a few people. or start researching the causes and solutions of hunger.