We all want to look younger and want to live as long as possible. You genetics, inheritance gives you start, but your diet plays a very important role in that. There are some anti-aging foods that make you look younger and slow your age.
For youthful look eat food that can full fill these condition
- UV rays are the main reason for skin age never forget the sunscreen when you go out under the sun. and eat lycopene-rich food. 
- Eat vitamin C, E, B rich food
- Consume omega-3 fatty acid
- Never let dehydrate your skin drink lots of water Eeat antioxidants rich food.
If your food fulfills these requirements, then these foods keep you young
You have heard many times that avocado makes you gain weight because it is high-fat content. But avocado is rich in healthy fat which is good for your health. Even avocado help you in losing weight. [2, 3, 4]
It reduces cholesterol level and process of skin regeneration because it provides vitamin C, Potassium, folic acid and antioxidant. [5, 6, 7, 8]
This also helps to increase collagen production. [10, 11,12]. So avocado is really good for your skin.
You can also try Avocado juice. Put avocado pulp, crushed ice, milk, and brown sugar into blender and blend. Now enjoy homemade avocado juice.
You should also try the berries like strawberries, grapes, blueberries, and blackberries because they contain the main ingredient which prevents you from aging Antioxidant properties that will delay some cell damage. 
Berries can also reduce joint pain and swelling. 
Blueberries can improve cognitive abilities and help to prevent diseases like Dementia and Alzheimer. 
Berries can also help you in preventing cancer. 
Only berries have some antioxidants that can protect your skin and repair your skin from the outside. [17, 18, 19]
They also stabilize the collagen, which retains your youthful look for longer. 
Carrots can protect your eyes because it contains Beta-Carotene. The body converts this into vitamin-A. [21, 22]
Which is essential for your eye function working smoothly. It also protects you from photoaging, wrinkles which cause by the exposure of the UV-Rays. [23, 24]
But you should not cook or overcook carrot because it reduces the number of vitamin and nutrients.
4. Citrus fruit
Citrus are the major primary and major source of Folic acid and vitamin C. they help decrease the level of uric acid and cholesterol level in your blood.
If you eat them regularly they will help you prevent a heart condition, circulatory condition, and gout. 
If you drink lemon juice in the morning on empty stomach to detoxify your body and you will feel radiant and healthy. [26, 27, 28]
Garlic is very useful, especially for infection. It kills most of the infection if you use it correctly.
Its bacteria killer properties make this anti-aging food and the best natural antibiotics.
Garlic has anti-inflammatory and anti-wrinkle properties.[29, 30]
It also helps to balance the cholesterol, improve the blood circulation and reduces the risks of cancer. [31, 32]
6. Olive oil
Olive oil is a very important part of the healthy diet and must be added to your diet for skin care.
It is the primary sources of alpha-linolenic acid, which can keep your skin hydrated and prevent you from aging. [33, 34]
You can use it in many beauty products you can use it in your daily use creams.
Tomatoes are very delicious as well as they have a great effect on your health. They are filled with vitamins like vitamin C, vitamin A, folic acid and nutrients. 
Lycopene, which is responsible for the red color in tomatoes. it’s an antioxidant, which 14 times greater than a reservoir of red wine. [37, 38]
It helps your skin from UV rays and also prevents you from a degenerative disease and infectious disease. 
It also helps you from skin inflammation you have to just rub this on your face. 
8. Oily fish
Oily fish such as anchovies and turbot are a good source of Omega-3 fatty acid. It helps in the regeneration of the cell. [41, 42, 43, 44]
They are also well known for skin care because they can prevent and reverse the oxidative damage that comes with your age. 
Gently apply a few drops of olive oil on your face around your eyes and also use it in the morning it will moisturize your eyes and decrease the wrinkle and fine line.
It has anti-inflammatory properties and it’s also easy to digest and anti-cancer. It slows down your aging process, give you energy.   
10. Jamon Iberico Ham
Jamon Iberico Ham helps to prevent muscle loss with age and also great sources of fatty acids.
It’s also the source of minerals such as iron, Zinc, potassium, and vitamin B. but don’t take it too much.
11. Dark chocolate
Dark chocolate contains antioxidants such as flavonoids which protect your skin from the UV damage, hydrate your skin and fight free radicals. [49, 50, 51,52]
But there is one condition only those chocolates can give these benefits which contain 75% of cocoa.
Nuts are rich in Zinc, vitamin E, omega-3 fatty acid and they also contain other vitamins that keep your skin young and glow. [53, 54]
If you eat them daily then this supply you B vitamins including folate, which prevents from dermatitis, selenium, which is an antioxidant and vitamin C. 
Walnut oil is one of the best antioxidants in the world. Walnut oil is a great moisturizer.
13. Green tea
Green tea is highly beneficial for your skin’s health and can also prevent you from obesity.
It is full of catkins and polyphenols which is an antioxidant that can reduce your fat, skin redness. It also protects your skin from UV rays. [56, 57, 58, 59]
Honey is 100% natural antioxidant, antibacterial and moisturizer properties. [60, 61, 62, ]
This is mostly used in a DIY facial mask which moisturizes your skin and treats inflammation. Eating honey is also beneficial for your health. 
Oranges are good for your skin and health because these are full of vitamin C and they are also full of water which hydrates the skin.
Oranges are also helped in collagen production. Collagen keeps your skin firm and supple which prevents wrinkles and sogginess. [64, 65, 66, 67]
This fruit is rich in vitamin C. it contains ellagic acid and Punic collagen. Punic collagen increased your body capacity to preserve the collagen. 
It can reduce UV-rays produced inflammation. [69, 70]
Ellagic acid fights with damage from the free radical. And top of that these are really tasty and delicious at least try for just a taste.
17. Fermented food
Good fermented foods are sauerkraut pickles, kimchi, miso, and cheese.
All these fermented foods contain probiotics these are some good bacteria which balance the bad bacteria. 
They also control, wrinkle and give you a glowing look by the absorption of nutrients from everything you eat.
Other benefits of these probiotics that they contain anti-aging lactic acid. [72, 73, 74, 75]
They contain lignans, which lower the cholesterol. Control the sugar and insulin level and also decrease the risk of cancer. They are also a great source of omega-3 fatty acid.
Omega-3 protects your skin from UV rays and reduce. If you consume this you will observe a noticeable change in your skin like improvement hydration and smoother skin.
Vegetable contains a lot of vitamins and nutrients that can be very useful for your skin and health and vegetable also have very low calories.
Most of the vegetables have high carotenoids. These can protect you against sun damage. Some of the best sources of vegetables like pumpkin, carrots, and sweet potato.
Vegetables are full of antioxidants and vitamin C, vitamin A, etc.
These all can rejuvenate your skin and reduce the oxidative damage and help you to younger than your real age. [76, 77, 78]
20. Water Malone
One of the main factors for your skin is hydrated and UV rays. But watermelon can help you in that case. Because water, Ali has a red color due to lycopene.
Which helps your skin from sun damage and also contain lots of water, which can keep you hydrated. 
This will really help you in summer, but don’t forget to use sunscreen during the summer.[showhide type=”links” more_text=”(+) Source” less_text=”(-)Source”]
Green tea https://www.ncbi.nlm.nih.gov/pubmed/14743550
Green tea “polyphenol” https://www.ncbi.nlm.nih.gov/pubmed/22792414
Tomato “wrinkle reduction” https://www.ncbi.nlm.nih.gov/pubmed/23927381
Tomato “paste collage” https://www.ncbi.nlm.nih.gov/pubmed/20854436
Dark chocolate https://www.ahajournals.org/doi/full/10.1161/circulationaha.107.738070
Dark chocolate for UV https://www.ncbi.nlm.nih.gov/pubmed/16702322
Dark chocolate for skin https://www.ncbi.nlm.nih.gov/pubmed/17164979
Pomegranate antioxidants https://www.ncbi.nlm.nih.gov/pubmed/11052704
Pomegranate ellagic acid https://www.ncbi.nlm.nih.gov/pubmed/23873506
Nut “serum iron zinc copper” https://www.ncbi.nlm.nih.gov/pubmed/21979243
Avocado “Glutathione” antiaging https://www.ncbi.nlm.nih.gov/pubmed/26467067
Fatty fish “Omega-3 fatty acid” https://www.ncbi.nlm.nih.gov/pubmed/26467067
Fish “consumption for
Blueberries “Vaccinium corymbosum L” https://www.ncbi.nlm.nih.gov/pubmed/23507228
Extra virgin olive oil anti aging https://www.ncbi.nlm.nih.gov/pubmed/22970231
Olive oil for wrinkle https://www.ncbi.nlm.nih.gov/pubmed/11293471
Effect of flaxseed https://www.ncbi.nlm.nih.gov/pubmed/25612882
Effects of carrots https://www.ncbi.nlm.nih.gov/pubmed/14569406[/showhide]